diff --git a/bukkit/src/main/java/com/boydti/fawe/bukkit/FaweBukkit.java b/bukkit/src/main/java/com/boydti/fawe/bukkit/FaweBukkit.java
index ee02dbc0..959111b3 100644
--- a/bukkit/src/main/java/com/boydti/fawe/bukkit/FaweBukkit.java
+++ b/bukkit/src/main/java/com/boydti/fawe/bukkit/FaweBukkit.java
@@ -167,15 +167,21 @@ public class FaweBukkit implements IFawe, Listener {
         return null;
     }
 
+    @Override
+    public void registerPacketListener() {
+        PluginManager manager = Bukkit.getPluginManager();
+        if (packetListener == null && manager.getPlugin("ProtocolLib") != null) {
+            packetListener = new CFIPacketListener(plugin);
+        }
+    }
+
     @Override
     public synchronized ImageViewer getImageViewer(FawePlayer fp) {
         if (listeningImages && imageListener == null) return null;
         try {
             listeningImages = true;
+            registerPacketListener();
             PluginManager manager = Bukkit.getPluginManager();
-            if (manager.getPlugin("ProtocolLib") != null) {
-                packetListener = new CFIPacketListener(plugin);
-            }
 
             if (manager.getPlugin("PacketListenerApi") == null) {
                 File output = new File(plugin.getDataFolder().getParentFile(), "PacketListenerAPI_v3.6.0-SNAPSHOT.jar");
diff --git a/bukkit/src/main/java/com/boydti/fawe/bukkit/listener/CFIPacketListener.java b/bukkit/src/main/java/com/boydti/fawe/bukkit/listener/CFIPacketListener.java
index 2edbef6b..02db320a 100644
--- a/bukkit/src/main/java/com/boydti/fawe/bukkit/listener/CFIPacketListener.java
+++ b/bukkit/src/main/java/com/boydti/fawe/bukkit/listener/CFIPacketListener.java
@@ -2,11 +2,11 @@ package com.boydti.fawe.bukkit.listener;
 
 import com.boydti.fawe.FaweCache;
 import com.boydti.fawe.command.CFICommands;
-import com.boydti.fawe.jnbt.anvil.HeightMapMCAGenerator;
 import com.boydti.fawe.object.FaweChunk;
 import com.boydti.fawe.object.FawePlayer;
 import com.boydti.fawe.object.FaweQueue;
 import com.boydti.fawe.object.RunnableVal3;
+import com.boydti.fawe.object.brush.visualization.VirtualWorld;
 import com.boydti.fawe.util.SetQueue;
 import com.comphenix.protocol.PacketType;
 import com.comphenix.protocol.ProtocolLibrary;
@@ -42,7 +42,7 @@ import org.bukkit.inventory.PlayerInventory;
 import org.bukkit.plugin.Plugin;
 
 /**
- * The CFIPacketListener handles packets for editing the HeightMapMCAGenerator
+ * The CFIPacketListener handles packets for editing the VirtualWorld
  * The generator is a virtual world which only the creator can see
  *  - The virtual world is displayed inside the current world
  *  - Block/Chunk/Movement packets need to be handled properly
@@ -57,9 +57,9 @@ public class CFIPacketListener implements Listener {
         this.protocolmanager = ProtocolLibrary.getProtocolManager();
 
         // Direct digging to the virtual world
-        registerBlockEvent(PacketType.Play.Client.BLOCK_DIG, false, new RunnableVal3<PacketEvent, HeightMapMCAGenerator, Vector>() {
+        registerBlockEvent(PacketType.Play.Client.BLOCK_DIG, false, new RunnableVal3<PacketEvent, VirtualWorld, Vector>() {
             @Override
-            public void run(PacketEvent event, HeightMapMCAGenerator gen, Vector pt) {
+            public void run(PacketEvent event, VirtualWorld gen, Vector pt) {
                 try {
                     Player plr = event.getPlayer();
                     Vector realPos = pt.add(gen.getOrigin());
@@ -73,9 +73,9 @@ public class CFIPacketListener implements Listener {
         });
 
         // Direct placing to the virtual world
-        RunnableVal3<PacketEvent, HeightMapMCAGenerator, Vector> placeTask = new RunnableVal3<PacketEvent, HeightMapMCAGenerator, Vector>() {
+        RunnableVal3<PacketEvent, VirtualWorld, Vector> placeTask = new RunnableVal3<PacketEvent, VirtualWorld, Vector>() {
             @Override
-            public void run(PacketEvent event, HeightMapMCAGenerator gen, Vector pt) {
+            public void run(PacketEvent event, VirtualWorld gen, Vector pt) {
                 try {
                     Player plr = event.getPlayer();
                     List<EnumWrappers.Hand> hands = event.getPacket().getHands().getValues();
@@ -99,9 +99,9 @@ public class CFIPacketListener implements Listener {
         registerBlockEvent(PacketType.Play.Client.USE_ITEM, true, placeTask);
 
         // Cancel block change packets where the real world overlaps with the virtual one
-        registerBlockEvent(PacketType.Play.Server.BLOCK_CHANGE, false, new RunnableVal3<PacketEvent, HeightMapMCAGenerator, Vector>() {
+        registerBlockEvent(PacketType.Play.Server.BLOCK_CHANGE, false, new RunnableVal3<PacketEvent, VirtualWorld, Vector>() {
             @Override
-            public void run(PacketEvent event, HeightMapMCAGenerator gen, Vector pt) {
+            public void run(PacketEvent event, VirtualWorld gen, Vector pt) {
                 // Do nothing
             }
         });
@@ -112,7 +112,7 @@ public class CFIPacketListener implements Listener {
             public void onPacketSending(PacketEvent event) {
                 if (!event.isServerPacket()) return;
 
-                HeightMapMCAGenerator gen = getGenerator(event);
+                VirtualWorld gen = getGenerator(event);
                 if (gen != null) {
                     Vector origin = gen.getOrigin();
                     PacketContainer packet = event.getPacket();
@@ -123,7 +123,7 @@ public class CFIPacketListener implements Listener {
                     int ocx = origin.getBlockX() >> 4;
                     int ocz = origin.getBlockZ() >> 4;
 
-                    if (gen.contain(new Vector((cx - ocx) << 4, 0, (cz - ocz) << 4))) {
+                    if (gen.contains(new Vector((cx - ocx) << 4, 0, (cz - ocz) << 4))) {
                         event.setCancelled(true);
 
                         Player plr = event.getPlayer();
@@ -147,7 +147,7 @@ public class CFIPacketListener implements Listener {
 
                 Player player = event.getPlayer();
                 Location pos = player.getLocation();
-                HeightMapMCAGenerator gen = getGenerator(event);
+                VirtualWorld gen = getGenerator(event);
                 if (gen != null) {
                     Vector origin = gen.getOrigin();
                     Vector pt = new Vector(pos.getBlockX(), pos.getBlockY(), pos.getBlockZ());
@@ -158,7 +158,7 @@ public class CFIPacketListener implements Listener {
                     int my = ints.read(2);
                     int mz = ints.read(3);
 
-                    if (gen.contain(pt.subtract(origin)) && mx == 0 && my == 0 && mz == 0) {
+                    if (gen.contains(pt.subtract(origin)) && mx == 0 && my == 0 && mz == 0) {
                         event.setCancelled(true);
                     }
                 }
@@ -172,7 +172,7 @@ public class CFIPacketListener implements Listener {
 
                 Player player = event.getPlayer();
                 Location pos = player.getLocation();
-                HeightMapMCAGenerator gen = getGenerator(event);
+                VirtualWorld gen = getGenerator(event);
                 if (gen != null) {
                     Vector origin = gen.getOrigin();
                     Vector from = new Vector(pos.getBlockX(), pos.getBlockY(), pos.getBlockZ());
@@ -180,7 +180,7 @@ public class CFIPacketListener implements Listener {
                     PacketContainer packet = event.getPacket();
                     StructureModifier<Double> doubles = packet.getDoubles();
                     Vector to = new Vector(doubles.read(0), doubles.read(1), doubles.read(2));
-                    if (gen.contain(to.subtract(origin)) && from.distanceSq(to) < 8) {
+                    if (gen.contains(to.subtract(origin)) && from.distanceSq(to) < 8) {
                         int id = packet.getIntegers().read(0);
                         PacketContainer reply = new PacketContainer(PacketType.Play.Client.TELEPORT_ACCEPT);
                         reply.getIntegers().write(0, id);
@@ -202,14 +202,14 @@ public class CFIPacketListener implements Listener {
             public void onPacketSending(PacketEvent event) {
                 if (!event.isServerPacket()) return;
 
-                HeightMapMCAGenerator gen = getGenerator(event);
+                VirtualWorld gen = getGenerator(event);
                 if (gen != null) {
                     PacketContainer packet = event.getPacket();
                     ChunkCoordIntPair chunk = packet.getChunkCoordIntPairs().read(0);
                     Vector origin = gen.getOrigin();
                     int cx = chunk.getChunkX() - (origin.getBlockX() >> 4);
                     int cz = chunk.getChunkZ() - (origin.getBlockX() >> 4);
-                    if (gen.contain(new Vector(cx << 4, 0, cz << 4))) {
+                    if (gen.contains(new Vector(cx << 4, 0, cz << 4))) {
                         event.setCancelled(true);
                     }
                 }
@@ -220,7 +220,7 @@ public class CFIPacketListener implements Listener {
     @EventHandler
     public void onTeleport(PlayerTeleportEvent event) {
         final Player player = event.getPlayer();
-        HeightMapMCAGenerator gen = getGenerator(player);
+        VirtualWorld gen = getGenerator(player);
         if (gen != null) {
             Location from = event.getFrom();
             Location to = event.getTo();
@@ -232,7 +232,7 @@ public class CFIPacketListener implements Listener {
         }
     }
 
-    private boolean sendBlockChange(Player plr, HeightMapMCAGenerator gen, Vector pt, Interaction action) {
+    private boolean sendBlockChange(Player plr, VirtualWorld gen, Vector pt, Interaction action) {
         PlatformManager platform = WorldEdit.getInstance().getPlatformManager();
         com.sk89q.worldedit.entity.Player actor = FawePlayer.wrap(plr).getPlayer();
         com.sk89q.worldedit.util.Location location = new com.sk89q.worldedit.util.Location(actor.getWorld(), pt);
@@ -261,19 +261,22 @@ public class CFIPacketListener implements Listener {
         }
     }
 
-    private HeightMapMCAGenerator getGenerator(PacketEvent event) {
+    private VirtualWorld getGenerator(PacketEvent event) {
         return getGenerator(event.getPlayer());
     }
 
-    private HeightMapMCAGenerator getGenerator(Player player) {
-        CFICommands.CFISettings settings = FawePlayer.wrap(player).getMeta("CFISettings");
+    private VirtualWorld getGenerator(Player player) {
+        FawePlayer<Object> fp = FawePlayer.wrap(player);
+        VirtualWorld vw = fp.getSession().getVirtualWorld();
+        if (vw != null) return vw;
+        CFICommands.CFISettings settings = fp.getMeta("CFISettings");
         if (settings != null && settings.hasGenerator() && settings.getGenerator().hasPacketViewer()) {
             return settings.getGenerator();
         }
         return null;
     }
 
-    private Vector getRelPos(PacketEvent event, HeightMapMCAGenerator generator) {
+    private Vector getRelPos(PacketEvent event, VirtualWorld generator) {
         PacketContainer packet = event.getPacket();
         StructureModifier<BlockPosition> position = packet.getBlockPositionModifier();
         BlockPosition loc = position.readSafely(0);
@@ -283,13 +286,13 @@ public class CFIPacketListener implements Listener {
         return pt;
     }
 
-    private void handleBlockEvent(PacketEvent event, boolean relative, RunnableVal3<PacketEvent, HeightMapMCAGenerator, Vector> task) {
-        HeightMapMCAGenerator gen = getGenerator(event);
+    private void handleBlockEvent(PacketEvent event, boolean relative, RunnableVal3<PacketEvent, VirtualWorld, Vector> task) {
+        VirtualWorld gen = getGenerator(event);
         if (gen != null) {
             Vector pt = getRelPos(event, gen);
             if (pt != null) {
                 if (relative) pt = getRelative(event, pt);
-                if (gen.contain(pt)) {
+                if (gen.contains(pt)) {
                     event.setCancelled(true);
                     task.run(event, gen, pt);
                 }
@@ -297,7 +300,7 @@ public class CFIPacketListener implements Listener {
         }
     }
 
-    private void registerBlockEvent(PacketType type, boolean relative, RunnableVal3<PacketEvent, HeightMapMCAGenerator, Vector> task) {
+    private void registerBlockEvent(PacketType type, boolean relative, RunnableVal3<PacketEvent, VirtualWorld, Vector> task) {
         protocolmanager.addPacketListener(new PacketAdapter(plugin, ListenerPriority.NORMAL, type) {
             @Override
             public void onPacketReceiving(final PacketEvent event) {
diff --git a/bukkit/src/main/java/com/boydti/fawe/bukkit/v1_12/BukkitQueue_1_12.java b/bukkit/src/main/java/com/boydti/fawe/bukkit/v1_12/BukkitQueue_1_12.java
index c35cdba4..a843d629 100644
--- a/bukkit/src/main/java/com/boydti/fawe/bukkit/v1_12/BukkitQueue_1_12.java
+++ b/bukkit/src/main/java/com/boydti/fawe/bukkit/v1_12/BukkitQueue_1_12.java
@@ -15,11 +15,7 @@ import com.boydti.fawe.object.RunnableVal;
 import com.boydti.fawe.object.brush.visualization.VisualChunk;
 import com.boydti.fawe.object.queue.LazyFaweChunk;
 import com.boydti.fawe.object.visitor.FaweChunkVisitor;
-import com.boydti.fawe.util.MainUtil;
-import com.boydti.fawe.util.MathMan;
-import com.boydti.fawe.util.ReflectionUtils;
-import com.boydti.fawe.util.SetQueue;
-import com.boydti.fawe.util.TaskManager;
+import com.boydti.fawe.util.*;
 import com.comphenix.protocol.PacketType;
 import com.comphenix.protocol.ProtocolLibrary;
 import com.comphenix.protocol.ProtocolManager;
@@ -36,49 +32,9 @@ import java.lang.reflect.Constructor;
 import java.lang.reflect.Field;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
-import java.util.Arrays;
-import java.util.Collection;
-import java.util.Collections;
-import java.util.Iterator;
-import java.util.Map;
-import java.util.Set;
-import java.util.UUID;
+import java.util.*;
 import java.util.concurrent.atomic.LongAdder;
-import net.minecraft.server.v1_12_R1.BiomeBase;
-import net.minecraft.server.v1_12_R1.BiomeCache;
-import net.minecraft.server.v1_12_R1.Block;
-import net.minecraft.server.v1_12_R1.BlockPosition;
-import net.minecraft.server.v1_12_R1.ChunkProviderGenerate;
-import net.minecraft.server.v1_12_R1.ChunkProviderServer;
-import net.minecraft.server.v1_12_R1.ChunkSection;
-import net.minecraft.server.v1_12_R1.DataPaletteBlock;
-import net.minecraft.server.v1_12_R1.Entity;
-import net.minecraft.server.v1_12_R1.EntityPlayer;
-import net.minecraft.server.v1_12_R1.EntityTracker;
-import net.minecraft.server.v1_12_R1.EntityTypes;
-import net.minecraft.server.v1_12_R1.EnumDifficulty;
-import net.minecraft.server.v1_12_R1.EnumGamemode;
-import net.minecraft.server.v1_12_R1.EnumSkyBlock;
-import net.minecraft.server.v1_12_R1.IBlockData;
-import net.minecraft.server.v1_12_R1.IDataManager;
-import net.minecraft.server.v1_12_R1.MinecraftServer;
-import net.minecraft.server.v1_12_R1.NBTTagCompound;
-import net.minecraft.server.v1_12_R1.NibbleArray;
-import net.minecraft.server.v1_12_R1.PacketDataSerializer;
-import net.minecraft.server.v1_12_R1.PacketPlayOutMapChunk;
-import net.minecraft.server.v1_12_R1.PacketPlayOutMultiBlockChange;
-import net.minecraft.server.v1_12_R1.PlayerChunk;
-import net.minecraft.server.v1_12_R1.PlayerChunkMap;
-import net.minecraft.server.v1_12_R1.RegionFile;
-import net.minecraft.server.v1_12_R1.RegionFileCache;
-import net.minecraft.server.v1_12_R1.ServerNBTManager;
-import net.minecraft.server.v1_12_R1.TileEntity;
-import net.minecraft.server.v1_12_R1.WorldChunkManager;
-import net.minecraft.server.v1_12_R1.WorldData;
-import net.minecraft.server.v1_12_R1.WorldManager;
-import net.minecraft.server.v1_12_R1.WorldServer;
-import net.minecraft.server.v1_12_R1.WorldSettings;
-import net.minecraft.server.v1_12_R1.WorldType;
+import net.minecraft.server.v1_12_R1.*;
 import org.bukkit.Bukkit;
 import org.bukkit.Chunk;
 import org.bukkit.World;
@@ -583,6 +539,7 @@ public class BukkitQueue_1_12 extends BukkitQueue_0<net.minecraft.server.v1_12_R
             for (int i = 0; i < players.length; i++) {
                 CraftPlayer bukkitPlayer = ((CraftPlayer) ((BukkitPlayer) players[i]).parent);
                 EntityPlayer player = bukkitPlayer.getHandle();
+
                 if (playerManager.a(player, chunk.getX(), chunk.getZ())) {
                     if (packet == null) {
                         byte[] data;
@@ -662,6 +619,15 @@ public class BukkitQueue_1_12 extends BukkitQueue_0<net.minecraft.server.v1_12_R
         sendChunk(fc.getX(), fc.getZ(), fc.getBitMask());
     }
 
+    public void sendPacket(int cx, int cz, Packet packet) {
+        PlayerChunk chunk = getPlayerChunk(nmsWorld, cx, cz);
+        if (chunk != null) {
+            for (EntityPlayer player : chunk.c) {
+                player.playerConnection.sendPacket(packet);
+            }
+        }
+    }
+
     private PlayerChunk getPlayerChunk(WorldServer w, int cx, int cz) {
         PlayerChunkMap chunkMap = w.getPlayerChunkMap();
         PlayerChunk playerChunk = chunkMap.getChunk(cx, cz);
diff --git a/bukkit/src/main/resources/plugin.yml b/bukkit/src/main/resources/plugin.yml
index 03430b35..588e46c4 100644
--- a/bukkit/src/main/resources/plugin.yml
+++ b/bukkit/src/main/resources/plugin.yml
@@ -13,7 +13,9 @@ commands:
     aliases: [fawecancel,/fcancel,/cancel,/fawecancel]
 permissions:
   fawe.plotsquared:
-    default: true
+      default: true
+      children:
+        fawe.plotsquared.trusted: true
   fawe.plotme:
     default: true
   fawe.bypass:
diff --git a/core/src/main/java/com/boydti/fawe/Fawe.java b/core/src/main/java/com/boydti/fawe/Fawe.java
index 99e17ad6..e2277992 100644
--- a/core/src/main/java/com/boydti/fawe/Fawe.java
+++ b/core/src/main/java/com/boydti/fawe/Fawe.java
@@ -628,30 +628,32 @@ public class Fawe {
             debug(" - https://discord.gg/ngZCzbU");
             debug("=======================================");
         }
-        try {
-            com.github.luben.zstd.util.Native.load();
-        } catch (Throwable e) {
-            if (Settings.IMP.CLIPBOARD.COMPRESSION_LEVEL > 6 || Settings.IMP.HISTORY.COMPRESSION_LEVEL > 6) {
-                Settings.IMP.CLIPBOARD.COMPRESSION_LEVEL = Math.min(6, Settings.IMP.CLIPBOARD.COMPRESSION_LEVEL);
-                Settings.IMP.HISTORY.COMPRESSION_LEVEL = Math.min(6, Settings.IMP.HISTORY.COMPRESSION_LEVEL);
-                debug("====== ZSTD COMPRESSION BINDING NOT FOUND ======");
+        if (!Settings.IMP.EXPERIMENTAL.DISABLE_NATIVES) {
+            try {
+                com.github.luben.zstd.util.Native.load();
+            } catch (Throwable e) {
+                if (Settings.IMP.CLIPBOARD.COMPRESSION_LEVEL > 6 || Settings.IMP.HISTORY.COMPRESSION_LEVEL > 6) {
+                    Settings.IMP.CLIPBOARD.COMPRESSION_LEVEL = Math.min(6, Settings.IMP.CLIPBOARD.COMPRESSION_LEVEL);
+                    Settings.IMP.HISTORY.COMPRESSION_LEVEL = Math.min(6, Settings.IMP.HISTORY.COMPRESSION_LEVEL);
+                    debug("====== ZSTD COMPRESSION BINDING NOT FOUND ======");
+                    debug(e);
+                    debug("===============================================");
+                    debug("FAWE will work but won't compress data as much");
+                    debug("===============================================");
+                }
+            }
+            try {
+                net.jpountz.util.Native.load();
+            } catch (Throwable e) {
+                debug("====== LZ4 COMPRESSION BINDING NOT FOUND ======");
                 debug(e);
                 debug("===============================================");
-                debug("FAWE will work but won't compress data as much");
+                debug("FAWE will work but compression will be slower");
+                debug(" - Try updating your JVM / OS");
+                debug(" - Report this issue if you cannot resolve it");
                 debug("===============================================");
             }
         }
-        try {
-            net.jpountz.util.Native.load();
-        } catch (Throwable e) {
-            debug("====== LZ4 COMPRESSION BINDING NOT FOUND ======");
-            debug(e);
-            debug("===============================================");
-            debug("FAWE will work but compression will be slower");
-            debug(" - Try updating your JVM / OS");
-            debug(" - Report this issue if you cannot resolve it");
-            debug("===============================================");
-        }
         try {
             String arch = System.getenv("PROCESSOR_ARCHITECTURE");
             String wow64Arch = System.getenv("PROCESSOR_ARCHITEW6432");
diff --git a/core/src/main/java/com/boydti/fawe/IFawe.java b/core/src/main/java/com/boydti/fawe/IFawe.java
index 0c8b1e44..5708ee91 100644
--- a/core/src/main/java/com/boydti/fawe/IFawe.java
+++ b/core/src/main/java/com/boydti/fawe/IFawe.java
@@ -40,6 +40,8 @@ public interface IFawe {
 
     default ImageViewer getImageViewer(FawePlayer player) { return null; }
 
+    public default void registerPacketListener() {}
+
     default int getPlayerCount() {
         return Fawe.get().getCachedPlayers().size();
     }
diff --git a/core/src/main/java/com/boydti/fawe/command/CFICommands.java b/core/src/main/java/com/boydti/fawe/command/CFICommands.java
index 6c2e9ec7..1e01e139 100644
--- a/core/src/main/java/com/boydti/fawe/command/CFICommands.java
+++ b/core/src/main/java/com/boydti/fawe/command/CFICommands.java
@@ -8,12 +8,7 @@ import com.boydti.fawe.jnbt.anvil.HeightMapMCAGenerator;
 import com.boydti.fawe.object.FawePlayer;
 import com.boydti.fawe.object.RunnableVal;
 import com.boydti.fawe.object.clipboard.MultiClipboardHolder;
-import com.boydti.fawe.util.CleanTextureUtil;
-import com.boydti.fawe.util.FilteredTextureUtil;
-import com.boydti.fawe.util.ImgurUtility;
-import com.boydti.fawe.util.StringMan;
-import com.boydti.fawe.util.TaskManager;
-import com.boydti.fawe.util.TextureUtil;
+import com.boydti.fawe.util.*;
 import com.boydti.fawe.util.chat.Message;
 import com.boydti.fawe.util.image.ImageUtil;
 import com.intellectualcrafters.plot.PS;
@@ -33,11 +28,8 @@ import com.sk89q.minecraft.util.commands.Command;
 import com.sk89q.minecraft.util.commands.CommandContext;
 import com.sk89q.minecraft.util.commands.CommandException;
 import com.sk89q.minecraft.util.commands.CommandPermissions;
-import com.sk89q.worldedit.EmptyClipboardException;
-import com.sk89q.worldedit.LocalSession;
+import com.sk89q.worldedit.*;
 import com.sk89q.worldedit.Vector;
-import com.sk89q.worldedit.WorldEdit;
-import com.sk89q.worldedit.WorldEditException;
 import com.sk89q.worldedit.blocks.BaseBlock;
 import com.sk89q.worldedit.command.MethodCommands;
 import com.sk89q.worldedit.entity.Player;
@@ -63,10 +55,9 @@ import java.io.File;
 import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.net.URL;
-import java.util.ArrayDeque;
-import java.util.HashSet;
-import java.util.Set;
-import java.util.UUID;
+import java.text.DateFormat;
+import java.text.SimpleDateFormat;
+import java.util.*;
 import javax.imageio.ImageIO;
 
 @Command(aliases = {"/cfi"}, desc = "Create a world from images: [More Info](https://git.io/v5iDy)")
@@ -95,7 +86,7 @@ public class CFICommands extends MethodCommands {
     )
     @CommandPermissions("worldedit.anvil.cfi")
     public void heightmap(FawePlayer fp, BufferedImage image) {
-        HeightMapMCAGenerator generator = new HeightMapMCAGenerator(image, getFolder("CFI-" + UUID.randomUUID()));
+        HeightMapMCAGenerator generator = new HeightMapMCAGenerator(image, getFolder(generateName()));
         setup(generator, fp);
     }
 
@@ -106,14 +97,20 @@ public class CFICommands extends MethodCommands {
     )
     @CommandPermissions("worldedit.anvil.cfi")
     public void heightmap(FawePlayer fp, int width, int length) {
-        HeightMapMCAGenerator generator = new HeightMapMCAGenerator(width, length, getFolder("CFI-" + UUID.randomUUID()));
+        HeightMapMCAGenerator generator = new HeightMapMCAGenerator(width, length, getFolder(generateName()));
         setup(generator, fp);
     }
 
+    private String generateName() {
+        DateFormat df = new SimpleDateFormat("dd.MM.yyyy HH.mm.ss");
+        String data = df.format(new Date());
+        return data;
+    }
+
     private void setup(HeightMapMCAGenerator generator, FawePlayer fp) {
-        CFISettings settings = getSettings(fp);
-        settings.remove().setGenerator(generator).bind();
+        CFISettings settings = getSettings(fp).remove();
         generator.setPacketViewer(fp);
+        settings.setGenerator(generator).bind();
         generator.setImageViewer(Fawe.imp().getImageViewer(fp));
         generator.update();
         mainMenu(fp);
@@ -1021,6 +1018,8 @@ public class CFICommands extends MethodCommands {
 
         protected String category;
 
+        private boolean bound;
+
         public CFISettings(FawePlayer player) {
             this.fp = player;
         }
@@ -1078,10 +1077,13 @@ public class CFICommands extends MethodCommands {
 
         public CFISettings setGenerator(HeightMapMCAGenerator generator) {
             this.generator = generator;
+            if (bound) fp.getSession().setVirtualWorld(generator);
             return this;
         }
 
         public CFISettings bind() {
+            if (generator != null) fp.getSession().setVirtualWorld(generator);
+            bound = true;
             fp.setMeta("CFISettings", this);
             return this;
         }
@@ -1099,11 +1101,10 @@ public class CFICommands extends MethodCommands {
             fp.deleteMeta("CFISettings");
             HeightMapMCAGenerator gen = this.generator;
             if (gen != null) {
-                gen.close();
-                LocalSession session = fp.getSession();
-                session.clearHistory();
+                fp.getSession().setVirtualWorld(null);
             }
             popMessages(fp);
+            bound = false;
             generator = null;
             image = null;
             imageArg = null;
diff --git a/core/src/main/java/com/boydti/fawe/command/Cancel.java b/core/src/main/java/com/boydti/fawe/command/Cancel.java
index dba98c0e..492f0244 100644
--- a/core/src/main/java/com/boydti/fawe/command/Cancel.java
+++ b/core/src/main/java/com/boydti/fawe/command/Cancel.java
@@ -4,6 +4,7 @@ import com.boydti.fawe.config.BBC;
 import com.boydti.fawe.object.FaweCommand;
 import com.boydti.fawe.object.FawePlayer;
 import com.boydti.fawe.object.FaweQueue;
+import com.boydti.fawe.object.brush.visualization.VirtualWorld;
 import com.boydti.fawe.util.SetQueue;
 import com.sk89q.worldedit.EditSession;
 import java.util.Collection;
@@ -35,6 +36,10 @@ public class Cancel extends FaweCommand {
                 }
             }
         }
+        VirtualWorld world = player.getSession().getVirtualWorld();
+        if (world != null) {
+            world.clear();
+        }
         BBC.WORLDEDIT_CANCEL_COUNT.send(player, cancelled);
         return true;
     }
diff --git a/core/src/main/java/com/boydti/fawe/config/BBC.java b/core/src/main/java/com/boydti/fawe/config/BBC.java
index 3ef2e24c..93a90f9c 100644
--- a/core/src/main/java/com/boydti/fawe/config/BBC.java
+++ b/core/src/main/java/com/boydti/fawe/config/BBC.java
@@ -185,7 +185,15 @@ public enum BBC {
     NOTHING_CONFIRMED("You have no actions pending confirmation.", "WorldEdit.Utility"),
 
 
+    SCHEMATIC_PROMPT_CLEAR("&7You may want to use &c%s0 &7to clear your current clipboard first", "Worldedit.Schematic"),
+    SCHEMATIC_SHOW("&7Displaying &a%s0&7 schematics from &a%s1&7:\n" +
+            "&8 - &aLeft click &7a structure to set your clipboard\n" +
+            "&8 - &aRight click &7to add a structure to your multi-clipboard\n" +
+            "&8 - &7Use &a%s2&7 to go back to the world", "Worldedit.Schematic"),
     SCHEMATIC_FORMAT("Available formats (Name: Lookup names)", "Worldedit.Schematic"),
+    SCHEMATIC_MOVE_EXISTS("&c%s0 already exists", "Worldedit.Schematic"),
+    SCHEMATIC_MOVE_SUCCESS("&a%s0 -> %s1", "Worldedit.Schematic"),
+    SCHEMATIC_MOVE_FAILED("&a%s0 no moved: %s1", "Worldedit.Schematic"),
     SCHEMATIC_LOADED("%s0 loaded. Paste it with //paste", "Worldedit.Schematic"),
     SCHEMATIC_SAVED("%s0 saved.", "Worldedit.Schematic"),
     SCHEMATIC_PAGE("Page must be %s", "WorldEdit.Schematic"),
diff --git a/core/src/main/java/com/boydti/fawe/config/Settings.java b/core/src/main/java/com/boydti/fawe/config/Settings.java
index dff4272e..3a333496 100644
--- a/core/src/main/java/com/boydti/fawe/config/Settings.java
+++ b/core/src/main/java/com/boydti/fawe/config/Settings.java
@@ -72,7 +72,10 @@ public class Settings extends Config {
         public String TEXTURES = "textures";
         public String HEIGHTMAP = "heightmap";
         public String HISTORY = "history";
-        @Comment("Multiple servers can use the same clipboards")
+        @Comment({
+                "Multiple servers can use the same clipboards",
+                " - Use a shared directory or NFS/Samba"
+        })
         public String CLIPBOARD = "clipboard";
         @Comment("Each player has their own sub directory for schematics")
         public boolean PER_PLAYER_SCHEMATICS = true;
@@ -315,6 +318,11 @@ public class Settings extends Config {
         })
         public boolean VANILLA_CUI = false;
 
+
+        @Comment({
+                "Disable using native libraries",
+        })
+        public boolean DISABLE_NATIVES = false;
     }
 
     public static class WEB {
diff --git a/core/src/main/java/com/boydti/fawe/jnbt/anvil/HeightMapMCAGenerator.java b/core/src/main/java/com/boydti/fawe/jnbt/anvil/HeightMapMCAGenerator.java
index 15aad52e..7fd7049f 100644
--- a/core/src/main/java/com/boydti/fawe/jnbt/anvil/HeightMapMCAGenerator.java
+++ b/core/src/main/java/com/boydti/fawe/jnbt/anvil/HeightMapMCAGenerator.java
@@ -3,41 +3,20 @@ package com.boydti.fawe.jnbt.anvil;
 import com.boydti.fawe.Fawe;
 import com.boydti.fawe.FaweCache;
 import com.boydti.fawe.example.SimpleCharFaweChunk;
-import com.boydti.fawe.object.FaweChunk;
-import com.boydti.fawe.object.FaweInputStream;
-import com.boydti.fawe.object.FaweLocation;
-import com.boydti.fawe.object.FaweOutputStream;
-import com.boydti.fawe.object.FawePlayer;
-import com.boydti.fawe.object.FaweQueue;
-import com.boydti.fawe.object.Metadatable;
-import com.boydti.fawe.object.PseudoRandom;
-import com.boydti.fawe.object.RunnableVal2;
+import com.boydti.fawe.object.*;
+import com.boydti.fawe.object.brush.visualization.VirtualWorld;
 import com.boydti.fawe.object.change.StreamChange;
 import com.boydti.fawe.object.changeset.CFIChangeSet;
-import com.boydti.fawe.object.collection.DifferentialArray;
-import com.boydti.fawe.object.collection.DifferentialBlockBuffer;
-import com.boydti.fawe.object.collection.IterableThreadLocal;
-import com.boydti.fawe.object.collection.LocalBlockVector2DSet;
-import com.boydti.fawe.object.collection.SummedAreaTable;
+import com.boydti.fawe.object.collection.*;
 import com.boydti.fawe.object.exception.FaweException;
 import com.boydti.fawe.object.queue.LazyFaweChunk;
 import com.boydti.fawe.object.schematic.Schematic;
-import com.boydti.fawe.util.CachedTextureUtil;
-import com.boydti.fawe.util.RandomTextureUtil;
-import com.boydti.fawe.util.ReflectionUtils;
-import com.boydti.fawe.util.SetQueue;
-import com.boydti.fawe.util.TaskManager;
-import com.boydti.fawe.util.TextureUtil;
+import com.boydti.fawe.util.*;
 import com.boydti.fawe.util.image.Drawable;
 import com.boydti.fawe.util.image.ImageViewer;
 import com.sk89q.jnbt.CompoundTag;
-import com.sk89q.worldedit.BlockVector;
-import com.sk89q.worldedit.EditSession;
-import com.sk89q.worldedit.MaxChangedBlocksException;
-import com.sk89q.worldedit.MutableBlockVector;
+import com.sk89q.worldedit.*;
 import com.sk89q.worldedit.Vector;
-import com.sk89q.worldedit.Vector2D;
-import com.sk89q.worldedit.WorldEditException;
 import com.sk89q.worldedit.blocks.BaseBlock;
 import com.sk89q.worldedit.blocks.BaseItemStack;
 import com.sk89q.worldedit.blocks.BlockID;
@@ -51,24 +30,18 @@ import com.sk89q.worldedit.regions.CuboidRegion;
 import com.sk89q.worldedit.regions.Region;
 import com.sk89q.worldedit.session.ClipboardHolder;
 import com.sk89q.worldedit.util.TreeGenerator;
-import com.sk89q.worldedit.world.SimpleWorld;
 import com.sk89q.worldedit.world.World;
 import com.sk89q.worldedit.world.biome.BaseBiome;
 import com.sk89q.worldedit.world.registry.WorldData;
 import java.awt.image.BufferedImage;
-import java.io.Closeable;
 import java.io.File;
 import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.lang.reflect.Field;
-import java.util.Arrays;
-import java.util.Collection;
-import java.util.Collections;
-import java.util.List;
-import java.util.UUID;
+import java.util.*;
 import javax.annotation.Nullable;
 
-public class HeightMapMCAGenerator extends MCAWriter implements SimpleWorld, FaweQueue, StreamChange, Closeable, Drawable {
+public class HeightMapMCAGenerator extends MCAWriter implements StreamChange, Drawable, VirtualWorld {
     private final MutableBlockVector mutable = new MutableBlockVector();
 
     private final ThreadLocal<int[]> indexStore = new ThreadLocal<int[]>() {
@@ -251,6 +224,7 @@ public class HeightMapMCAGenerator extends MCAWriter implements SimpleWorld, Faw
         throw new UnsupportedOperationException("Not supported: Queue is not backed by a real world");
     }
 
+    @Override
     public Vector getOrigin() {
         return new BlockVector(chunkOffset.getBlockX() << 4, 0, chunkOffset.getBlockZ() << 4);
     }
@@ -286,6 +260,7 @@ public class HeightMapMCAGenerator extends MCAWriter implements SimpleWorld, Faw
         return viewer;
     }
 
+    @Override
     public void update() {
         if (viewer != null) {
             viewer.view(this);
@@ -326,9 +301,6 @@ public class HeightMapMCAGenerator extends MCAWriter implements SimpleWorld, Faw
                             e.printStackTrace();
                         }
                     });
-//                    FaweChunk toSend = getSnapshot(chunk, finalCX, finalCZ);
-//                    toSend.setLoc(HeightMapMCAGenerator.this, finalCX + OX, finalCZ + OZ);
-//                    packetQueue.sendChunkUpdate(toSend, player);
                 }
             }
         }
@@ -695,6 +667,11 @@ public class HeightMapMCAGenerator extends MCAWriter implements SimpleWorld, Faw
         return new Vector(0, 0, 0);
     }
 
+    @Override
+    public FawePlayer getPlayer() {
+        return player;
+    }
+
     @Override
     public Vector getMaximumPoint() {
         return new Vector(getWidth() - 1, 255, getLength() - 1);
@@ -774,6 +751,7 @@ public class HeightMapMCAGenerator extends MCAWriter implements SimpleWorld, Faw
         return new SimpleCharFaweChunk(this, chunkX, chunkZ);
     }
 
+    @Override
     public FaweChunk getSnapshot(int chunkX, int chunkZ) {
         return getSnapshot(null, chunkX, chunkZ);
     }
@@ -899,9 +877,9 @@ public class HeightMapMCAGenerator extends MCAWriter implements SimpleWorld, Faw
     }
 
     @Override
-    public void close() {
+    public void close(boolean update) {
         clear();
-        if (chunkOffset != null && player != null) {
+        if (chunkOffset != null && player != null && update) {
             FaweQueue packetQueue = SetQueue.IMP.getNewQueue(player.getWorld(), true, false);
 
             int lenCX = (getWidth() + 15) >> 4;
@@ -925,6 +903,11 @@ public class HeightMapMCAGenerator extends MCAWriter implements SimpleWorld, Faw
                 }
             }
         }
+        if (player != null) {
+            player.deleteMeta("CFISettings");
+            LocalSession session = player.getSession();
+            session.clearHistory();
+        }
         player = null;
         chunkOffset = null;
     }
@@ -2151,7 +2134,7 @@ public class HeightMapMCAGenerator extends MCAWriter implements SimpleWorld, Faw
 
     @Override
     public int getMaxY() {
-        return SimpleWorld.super.getMaxY();
+        return 255;
     }
 
     @Override
diff --git a/core/src/main/java/com/boydti/fawe/jnbt/anvil/MCAChunk.java b/core/src/main/java/com/boydti/fawe/jnbt/anvil/MCAChunk.java
index 31f7e47e..34be77fc 100644
--- a/core/src/main/java/com/boydti/fawe/jnbt/anvil/MCAChunk.java
+++ b/core/src/main/java/com/boydti/fawe/jnbt/anvil/MCAChunk.java
@@ -11,24 +11,11 @@ import com.boydti.fawe.util.ArrayUtil;
 import com.boydti.fawe.util.MainUtil;
 import com.boydti.fawe.util.MathMan;
 import com.boydti.fawe.util.ReflectionUtils;
-import com.sk89q.jnbt.CompoundTag;
-import com.sk89q.jnbt.IntTag;
-import com.sk89q.jnbt.ListTag;
-import com.sk89q.jnbt.NBTConstants;
-import com.sk89q.jnbt.NBTInputStream;
-import com.sk89q.jnbt.NBTOutputStream;
-import com.sk89q.jnbt.Tag;
+import com.sk89q.jnbt.*;
 import java.io.DataOutput;
 import java.io.DataOutputStream;
 import java.io.IOException;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.Iterator;
-import java.util.Map;
-import java.util.Set;
-import java.util.UUID;
+import java.util.*;
 
 public class MCAChunk extends FaweChunk<Void> {
 
@@ -102,13 +89,7 @@ public class MCAChunk extends FaweChunk<Void> {
         }
     }
 
-    public byte[] toBytes(byte[] buffer) throws IOException {
-        if (buffer == null) {
-            buffer = new byte[8192];
-        }
-        FastByteArrayOutputStream buffered = new FastByteArrayOutputStream(buffer);
-        DataOutputStream dataOut = new DataOutputStream(buffered);
-        NBTOutputStream nbtOut = new NBTOutputStream((DataOutput) dataOut);
+    public void write(NBTOutputStream nbtOut) throws IOException {
         nbtOut.writeNamedTagName("", NBTConstants.TYPE_COMPOUND);
         nbtOut.writeLazyCompoundTag("Level", new NBTOutputStream.LazyWrite() {
             @Override
@@ -135,12 +116,12 @@ public class MCAChunk extends FaweChunk<Void> {
                 }
                 out.writeNamedTag("HeightMap", heightMap);
                 out.writeNamedTagName("Sections", NBTConstants.TYPE_LIST);
-                dataOut.writeByte(NBTConstants.TYPE_COMPOUND);
+                nbtOut.getOutputStream().writeByte(NBTConstants.TYPE_COMPOUND);
                 int len = 0;
                 for (int layer = 0; layer < ids.length; layer++) {
                     if (ids[layer] != null) len++;
                 }
-                dataOut.writeInt(len);
+                nbtOut.getOutputStream().writeInt(len);
                 for (int layer = 0; layer < ids.length; layer++) {
                     byte[] idLayer = ids[layer];
                     if (idLayer == null) {
@@ -156,7 +137,17 @@ public class MCAChunk extends FaweChunk<Void> {
             }
         });
         nbtOut.writeEndTag();
-        nbtOut.close();
+    }
+
+    public byte[] toBytes(byte[] buffer) throws IOException {
+        if (buffer == null) {
+            buffer = new byte[8192];
+        }
+        FastByteArrayOutputStream buffered = new FastByteArrayOutputStream(buffer);
+        DataOutputStream dataOut = new DataOutputStream(buffered);
+        try (NBTOutputStream nbtOut = new NBTOutputStream((DataOutput) dataOut)) {
+            write(nbtOut);
+        }
         return buffered.toByteArray();
     }
 
@@ -465,7 +456,7 @@ public class MCAChunk extends FaweChunk<Void> {
         return FaweCache.asTag(root);
     }
 
-    public MCAChunk(NBTInputStream nis, FaweQueue parent, int x, int z, int compressedSize) throws IOException {
+    public MCAChunk(NBTInputStream nis, FaweQueue parent, int x, int z, boolean readPos) throws IOException {
         super(parent, x, z);
         ids = new byte[16][];
         data = new byte[16][];
@@ -527,6 +518,20 @@ public class MCAChunk extends FaweChunk<Void> {
                 heightMap = value;
             }
         });
+        if (readPos) {
+            streamer.addReader(".Level.xPos", new RunnableVal2<Integer, Integer>() {
+                @Override
+                public void run(Integer index, Integer value) {
+                    MCAChunk.this.setLoc(getParent(), value, getZ());
+                }
+            });
+            streamer.addReader(".Level.zPos", new RunnableVal2<Integer, Integer>() {
+                @Override
+                public void run(Integer index, Integer value) {
+                    MCAChunk.this.setLoc(getParent(), getX(), value);
+                }
+            });
+        }
         streamer.readFully();
     }
 
diff --git a/core/src/main/java/com/boydti/fawe/jnbt/anvil/MCAFile.java b/core/src/main/java/com/boydti/fawe/jnbt/anvil/MCAFile.java
index 4b5ddbaa..b274b241 100644
--- a/core/src/main/java/com/boydti/fawe/jnbt/anvil/MCAFile.java
+++ b/core/src/main/java/com/boydti/fawe/jnbt/anvil/MCAFile.java
@@ -86,6 +86,17 @@ public class MCAFile {
         Z = Integer.parseInt(split[2]);
     }
 
+    public MCAFile(FaweQueue parent, int mcrX, int mcrZ) throws Exception {
+        this(parent, mcrX, mcrZ, new File(parent.getSaveFolder(), "r." + mcrX + "." + mcrZ + ".mca"));
+    }
+
+    public MCAFile(FaweQueue parent, int mcrX, int mcrZ, File file) {
+        this.queue = parent;
+        this.file = file;
+        X = mcrX;
+        Z = mcrZ;
+    }
+
     public void clear() {
         if (raf != null) {
             try {
@@ -130,12 +141,14 @@ public class MCAFile {
         try {
             if (raf == null) {
                 this.locations = new byte[4096];
-                this.raf = new RandomAccessFile(file, "rw");
-                if (raf.length() < 8192) {
-                    raf.setLength(8192);
-                } else {
-                    raf.seek(0);
-                    raf.readFully(locations);
+                if (file != null) {
+                    this.raf = new RandomAccessFile(file, "rw");
+                    if (raf.length() < 8192) {
+                        raf.setLength(8192);
+                    } else {
+                        raf.seek(0);
+                        raf.readFully(locations);
+                    }
                 }
             }
         } catch (Throwable e) {
@@ -143,10 +156,6 @@ public class MCAFile {
         }
     }
 
-    public MCAFile(FaweQueue parent, int mcrX, int mcrZ) throws Exception {
-        this(parent, new File(parent.getSaveFolder(), "r." + mcrX + "." + mcrZ + ".mca"));
-    }
-
     public int getX() {
         return X;
     }
@@ -196,7 +205,7 @@ public class MCAFile {
             return null;
         }
         NBTInputStream nis = getChunkIS(offset);
-        MCAChunk chunk = new MCAChunk(nis, queue, cx, cz, size);
+        MCAChunk chunk = new MCAChunk(nis, queue, cx, cz, false);
         nis.close();
         int pair = MathMan.pair((short) (cx & 31), (short) (cz & 31));
         synchronized (chunks) {
diff --git a/core/src/main/java/com/boydti/fawe/jnbt/anvil/MCAQueue.java b/core/src/main/java/com/boydti/fawe/jnbt/anvil/MCAQueue.java
index 6e6d365a..d7d2d039 100644
--- a/core/src/main/java/com/boydti/fawe/jnbt/anvil/MCAQueue.java
+++ b/core/src/main/java/com/boydti/fawe/jnbt/anvil/MCAQueue.java
@@ -116,38 +116,38 @@ public class MCAQueue extends NMSMappedFaweQueue<FaweQueue, FaweChunk, FaweChunk
         int otherBCZ = (obz) >> 4;
         int otherTCX = (otx) >> 4;
         int otherTCZ = (otz) >> 4;
-        int cx = newChunk.getX();
-        int cz = newChunk.getZ();
-        int cbx = (cx << 4) - oX;
-        int cbz = (cz << 4) - oZ;
+    int cx = newChunk.getX();
+    int cz = newChunk.getZ();
+    int cbx = (cx << 4) - oX;
+    int cbz = (cz << 4) - oZ;
 
-        boolean changed = false;
+    boolean changed = false;
         for (int otherCZ = otherBCZ; otherCZ <= otherTCZ; otherCZ++) {
-            for (int otherCX = otherBCX; otherCX <= otherTCX; otherCX++) {
-                FaweChunk chunk;
-                synchronized (this) {
-                    chunk = this.getFaweChunk(otherCX, otherCZ);
-                }
-                if (!(chunk instanceof NullFaweChunk)) {
-                    changed = true;
-                    MCAChunk other = (MCAChunk) chunk;
-                    int ocbx = otherCX << 4;
-                    int ocbz = otherCZ << 4;
-                    int octx = ocbx + 15;
-                    int octz = ocbz + 15;
-                    int offsetY = 0;
-                    int minX = obx > ocbx ? (obx - ocbx) & 15 : 0;
-                    int maxX = otx < octx ? (otx - ocbx) : 15;
-                    int minZ = obz > ocbz ? (obz - ocbz) & 15 : 0;
-                    int maxZ = otz < octz ? (otz - ocbz) : 15;
-                    int offsetX = ocbx - cbx;
-                    int offsetZ = ocbz - cbz;
-                    newChunk.copyFrom(other, minX, maxX, 0, 255, minZ, maxZ, offsetX, offsetY, offsetZ);
-                }
+        for (int otherCX = otherBCX; otherCX <= otherTCX; otherCX++) {
+            FaweChunk chunk;
+            synchronized (this) {
+                chunk = this.getFaweChunk(otherCX, otherCZ);
+            }
+            if (!(chunk instanceof NullFaweChunk)) {
+                changed = true;
+                MCAChunk other = (MCAChunk) chunk;
+                int ocbx = otherCX << 4;
+                int ocbz = otherCZ << 4;
+                int octx = ocbx + 15;
+                int octz = ocbz + 15;
+                int offsetY = 0;
+                int minX = obx > ocbx ? (obx - ocbx) & 15 : 0;
+                int maxX = otx < octx ? (otx - ocbx) : 15;
+                int minZ = obz > ocbz ? (obz - ocbz) & 15 : 0;
+                int maxZ = otz < octz ? (otz - ocbz) : 15;
+                int offsetX = ocbx - cbx;
+                int offsetZ = ocbz - cbz;
+                newChunk.copyFrom(other, minX, maxX, 0, 255, minZ, maxZ, offsetX, offsetY, offsetZ);
             }
         }
-        return changed;
     }
+        return changed;
+}
 
     @Override
     public boolean setMCA(int mcaX, int mcaZ, RegionWrapper region, Runnable whileLocked, boolean save, boolean unload) {
diff --git a/core/src/main/java/com/boydti/fawe/jnbt/anvil/MCAQueueMap.java b/core/src/main/java/com/boydti/fawe/jnbt/anvil/MCAQueueMap.java
index aa714bf5..e2dab560 100644
--- a/core/src/main/java/com/boydti/fawe/jnbt/anvil/MCAQueueMap.java
+++ b/core/src/main/java/com/boydti/fawe/jnbt/anvil/MCAQueueMap.java
@@ -53,13 +53,19 @@ public class MCAQueueMap implements IFaweQueueMap {
         if (lastFile == null) {
             try {
                 queue.setMCA(lastFileX, lastFileZ, RegionWrapper.GLOBAL(), null, true, false);
-                File file = new File(queue.getSaveFolder(), "r." + lastFileX + "." + lastFileZ + ".mca");
-                if (create) {
-                    File parent = file.getParentFile();
-                    if (!parent.exists()) parent.mkdirs();
-                    if (!file.exists()) file.createNewFile();
+                File save = queue.getSaveFolder();
+                File file;
+                if (save != null) {
+                    file = new File(queue.getSaveFolder(), "r." + lastFileX + "." + lastFileZ + ".mca");
+                    if (create) {
+                        File parent = file.getParentFile();
+                        if (!parent.exists()) parent.mkdirs();
+                        if (!file.exists()) file.createNewFile();
+                    }
+                } else {
+                    file = null;
                 }
-                lastFile = tmp = new MCAFile(queue, file);
+                lastFile = tmp = new MCAFile(queue, mcaX, mcaZ, file);
             } catch (FaweException.FaweChunkLoadException ignore) {
                 lastFile = null;
                 return null;
diff --git a/core/src/main/java/com/boydti/fawe/jnbt/anvil/filters/DebugFixAir.java b/core/src/main/java/com/boydti/fawe/jnbt/anvil/filters/DebugFixAir.java
index eb20e77a..2f018bd3 100644
--- a/core/src/main/java/com/boydti/fawe/jnbt/anvil/filters/DebugFixAir.java
+++ b/core/src/main/java/com/boydti/fawe/jnbt/anvil/filters/DebugFixAir.java
@@ -56,7 +56,7 @@ public class DebugFixAir extends MCAFilterCounter {
                     }
                 }
                 ids0[i] = BlockID.BEDROCK;
-                chunk.ids[4][i] = BlockID.GRASS;
+                if (chunk.ids[4][i] == 0) chunk.ids[4][i] = BlockID.GRASS;
                 cache.add(256);
             }
         }
diff --git a/core/src/main/java/com/boydti/fawe/object/DelegateConsumer.java b/core/src/main/java/com/boydti/fawe/object/DelegateConsumer.java
new file mode 100644
index 00000000..1414df18
--- /dev/null
+++ b/core/src/main/java/com/boydti/fawe/object/DelegateConsumer.java
@@ -0,0 +1,16 @@
+package com.boydti.fawe.object;
+
+import java.util.function.Consumer;
+
+public abstract class DelegateConsumer<T> implements Consumer<T> {
+    private final Consumer parent;
+
+    public DelegateConsumer(Consumer parent) {
+        this.parent = parent;
+    }
+
+    @Override
+    public void accept(T o) {
+        parent.accept(o);
+    }
+}
diff --git a/core/src/main/java/com/boydti/fawe/object/FaweInputStream.java b/core/src/main/java/com/boydti/fawe/object/FaweInputStream.java
index 07ad034b..bee1c7bc 100644
--- a/core/src/main/java/com/boydti/fawe/object/FaweInputStream.java
+++ b/core/src/main/java/com/boydti/fawe/object/FaweInputStream.java
@@ -1,5 +1,6 @@
 package com.boydti.fawe.object;
 
+import com.boydti.fawe.util.IOUtil;
 import com.sk89q.jnbt.NBTInputStream;
 import com.sk89q.jnbt.NamedTag;
 import java.io.DataInputStream;
@@ -64,16 +65,8 @@ public class FaweInputStream extends DataInputStream {
         }
     }
 
-    public int readVarInt() throws IOException {
-        int i = 0;
-        int offset = 0;
-        int b;
-        while ((b = read()) > 127) {
-            i |= (b - 128) << offset;
-            offset += 7;
-        }
-        i |= b << offset;
-        return i;
+    public final int readVarInt() throws IOException {
+        return IOUtil.readVarInt(this);
     }
 
     @Override
diff --git a/core/src/main/java/com/boydti/fawe/object/FaweLimit.java b/core/src/main/java/com/boydti/fawe/object/FaweLimit.java
index 25964fab..389c681b 100644
--- a/core/src/main/java/com/boydti/fawe/object/FaweLimit.java
+++ b/core/src/main/java/com/boydti/fawe/object/FaweLimit.java
@@ -18,7 +18,6 @@ public class FaweLimit {
     public boolean FAST_PLACEMENT = false;
     public boolean CONFIRM_LARGE = true;
 
-
     public static FaweLimit MAX;
 
     static {
diff --git a/core/src/main/java/com/boydti/fawe/object/FawePlayer.java b/core/src/main/java/com/boydti/fawe/object/FawePlayer.java
index 2e834cdc..1cef0caf 100644
--- a/core/src/main/java/com/boydti/fawe/object/FawePlayer.java
+++ b/core/src/main/java/com/boydti/fawe/object/FawePlayer.java
@@ -5,7 +5,7 @@ import com.boydti.fawe.FaweAPI;
 import com.boydti.fawe.command.CFICommands;
 import com.boydti.fawe.config.BBC;
 import com.boydti.fawe.config.Settings;
-import com.boydti.fawe.jnbt.anvil.HeightMapMCAGenerator;
+import com.boydti.fawe.object.brush.visualization.VirtualWorld;
 import com.boydti.fawe.object.clipboard.DiskOptimizedClipboard;
 import com.boydti.fawe.object.exception.FaweException;
 import com.boydti.fawe.regions.FaweMaskManager;
@@ -302,6 +302,13 @@ public abstract class FawePlayer<T> extends Metadatable {
         return false;
     }
 
+    public boolean checkAction() {
+        long time = getMeta("faweActionTick", Long.MIN_VALUE);
+        long tick = Fawe.get().getTimer().getTick();
+        setMeta("faweActionTick", tick);
+        return tick > time;
+    }
+
     /**
      * Loads any history items from disk:
      * - Should already be called if history on disk is enabled
@@ -610,16 +617,24 @@ public abstract class FawePlayer<T> extends Metadatable {
         return new EditSessionBuilder(getWorld()).player(this).build();
     }
 
+    public void setVirtualWorld(VirtualWorld world) {
+        getSession().setVirtualWorld(world);
+    }
+
     /**
      * Get the World the player is editing in (may not match the world they are in)<br/>
      * - e.g. If they are editing a CFI world.<br/>
      * @return Editing world
      */
     public World getWorldForEditing() {
-        CFICommands.CFISettings cfi = getMeta("CFISettings");
-        if (cfi != null && cfi.hasGenerator() && cfi.getGenerator().hasPacketViewer()) {
-            return cfi.getGenerator();
+        VirtualWorld virtual = getSession().getVirtualWorld();
+        if (virtual != null) {
+            return virtual;
         }
+//        CFICommands.CFISettings cfi = getMeta("CFISettings");
+//        if (cfi != null && cfi.hasGenerator() && cfi.getGenerator().hasPacketViewer()) {
+//            return cfi.getGenerator();
+//        }
         return WorldEdit.getInstance().getPlatformManager().getWorldForEditing(getWorld());
     }
 
@@ -640,8 +655,8 @@ public abstract class FawePlayer<T> extends Metadatable {
         }
 
         PlayerProxy proxy = new PlayerProxy(player, permActor, cuiActor, world);
-        if (world instanceof HeightMapMCAGenerator) {
-            proxy.setOffset(Vector.ZERO.subtract(((HeightMapMCAGenerator) world).getOrigin()));
+        if (world instanceof VirtualWorld) {
+            proxy.setOffset(Vector.ZERO.subtract(((VirtualWorld) world).getOrigin()));
         }
         return proxy;
     }
diff --git a/core/src/main/java/com/boydti/fawe/object/RegionWrapper.java b/core/src/main/java/com/boydti/fawe/object/RegionWrapper.java
index cb4d3533..ed60c8fc 100644
--- a/core/src/main/java/com/boydti/fawe/object/RegionWrapper.java
+++ b/core/src/main/java/com/boydti/fawe/object/RegionWrapper.java
@@ -3,6 +3,7 @@ package com.boydti.fawe.object;
 import com.sk89q.worldedit.Vector;
 import com.sk89q.worldedit.regions.CuboidRegion;
 
+@Deprecated
 public class RegionWrapper extends CuboidRegion {
     private final static RegionWrapper GLOBAL = new RegionWrapper(Integer.MIN_VALUE, Integer.MAX_VALUE, Integer.MIN_VALUE, Integer.MAX_VALUE);
 
diff --git a/core/src/main/java/com/boydti/fawe/object/brush/visualization/ImmutableVirtualWorld.java b/core/src/main/java/com/boydti/fawe/object/brush/visualization/ImmutableVirtualWorld.java
new file mode 100644
index 00000000..64bc3cb2
--- /dev/null
+++ b/core/src/main/java/com/boydti/fawe/object/brush/visualization/ImmutableVirtualWorld.java
@@ -0,0 +1,265 @@
+package com.boydti.fawe.object.brush.visualization;
+
+import com.boydti.fawe.FaweCache;
+import com.boydti.fawe.example.SimpleCharFaweChunk;
+import com.boydti.fawe.object.FaweChunk;
+import com.boydti.fawe.object.FawePlayer;
+import com.boydti.fawe.object.RunnableVal2;
+import com.boydti.fawe.object.exception.FaweException;
+import com.boydti.fawe.util.SetQueue;
+import com.sk89q.jnbt.CompoundTag;
+import com.sk89q.worldedit.*;
+import com.sk89q.worldedit.blocks.BaseBlock;
+import com.sk89q.worldedit.blocks.BaseItemStack;
+import com.sk89q.worldedit.function.operation.Operation;
+import com.sk89q.worldedit.regions.Region;
+import com.sk89q.worldedit.util.TreeGenerator;
+import com.sk89q.worldedit.world.World;
+import com.sk89q.worldedit.world.biome.BaseBiome;
+import java.io.File;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.UUID;
+import javax.annotation.Nullable;
+
+public abstract class ImmutableVirtualWorld implements VirtualWorld {
+    @Override
+    public int getMaxY() {
+        return 255;
+    }
+
+    @Override
+    public Collection<FaweChunk> getFaweChunks() {
+        return Collections.emptyList();
+    }
+
+    @Override
+    public boolean regenerateChunk(int x, int z, @Nullable BaseBiome biome, @Nullable Long seed) {
+        return unsupported();
+    }
+
+    @Override
+    public void sendBlockUpdate(FaweChunk chunk, FawePlayer... players) {
+
+    }
+
+    @Override
+    public File getSaveFolder() {
+        return null;
+    }
+
+    @Override
+    public void addNotifyTask(int x, int z, Runnable runnable) {
+        if (runnable != null) runnable.run();
+    }
+
+    @Override
+    public BaseBiome getBiome(Vector2D position) {
+        return FaweCache.getBiome(0);
+    }
+
+    @Override
+    public int getCombinedId4Data(int x, int y, int z, int def) {
+        return getCombinedId4Data(x, y, z);
+    }
+
+    @Override
+    public int getCachedCombinedId4Data(int x, int y, int z) throws FaweException.FaweChunkLoadException {
+        return getCombinedId4Data(x, y, z);
+    }
+
+    @Override
+    public boolean hasSky() {
+        return true;
+    }
+
+    @Override
+    public int getSkyLight(int x, int y, int z) {
+        return 15;
+    }
+
+    @Override
+    public int getEmmittedLight(int x, int y, int z) {
+        return 0;
+    }
+
+    @Override
+    public CompoundTag getTileEntity(int x, int y, int z) throws FaweException.FaweChunkLoadException {
+        return null;
+    }
+
+    @Override
+    public int size() {
+        return 0;
+    }
+
+    @Override
+    public void setWorld(String world) {
+
+    }
+
+    @Override
+    public World getWEWorld() {
+        return this;
+    }
+
+    @Override
+    public String getWorldName() {
+        return getName();
+    }
+
+    @Override
+    public long getModified() {
+        return 0;
+    }
+
+    @Override
+    public void setModified(long modified) {
+        // Unsupported
+    }
+
+    @Override
+    public RunnableVal2<ProgressType, Integer> getProgressTask() {
+        return null;
+    }
+
+    @Override
+    public void setProgressTask(RunnableVal2<ProgressType, Integer> progressTask) {
+
+    }
+
+    @Override
+    public void setChangeTask(RunnableVal2<FaweChunk, FaweChunk> changeTask) {
+
+    }
+
+    @Override
+    public RunnableVal2<FaweChunk, FaweChunk> getChangeTask() {
+        return null;
+    }
+
+    @Override
+    public SetQueue.QueueStage getStage() {
+        return SetQueue.QueueStage.NONE;
+    }
+
+    @Override
+    public void setStage(SetQueue.QueueStage stage) {
+        // Not supported
+    }
+
+    @Override
+    public void addNotifyTask(Runnable runnable) {
+        runnable.run();
+    }
+
+    @Override
+    public void runTasks() {
+
+    }
+
+    @Override
+    public void addTask(Runnable whenFree) {
+        whenFree.run();
+    }
+
+    @Override
+    public boolean isEmpty() {
+        return true;
+    }
+
+    @Nullable
+    @Override
+    public Operation commit() {
+        return null;
+    }
+
+    @Override
+    public String getName() {
+        return Integer.toString(hashCode());
+    }
+
+    @Override
+    public boolean setBlock(Vector position, BaseBlock block, boolean notifyAndLight) throws WorldEditException {
+        return setBlock(position, block);
+    }
+
+    @Override
+    public int getBlockLightLevel(Vector position) {
+        return 0;
+    }
+
+    @Override
+    public boolean clearContainerBlockContents(Vector position) {
+        return unsupported();
+    }
+
+    @Override
+    public void dropItem(Vector position, BaseItemStack item) {
+        unsupported();
+    }
+
+    @Override
+    public boolean generateTree(TreeGenerator.TreeType type, EditSession editSession, Vector position) throws MaxChangedBlocksException {
+        return unsupported();
+    }
+
+    @Override
+    public FaweChunk getFaweChunk(int chunkX, int chunkZ) {
+        return new SimpleCharFaweChunk(this, chunkX, chunkZ);
+    }
+
+    @Override
+    public void setEntity(int x, int y, int z, CompoundTag tag) {
+        unsupported();
+    }
+
+    @Override
+    public boolean setBlock(Vector pt, BaseBlock block) throws WorldEditException {
+        return unsupported();
+    }
+
+    @Override
+    public boolean setBlock(int x, int y, int z, int id, int data) {
+        return unsupported();
+    }
+
+    @Override
+    public void setTile(int x, int y, int z, CompoundTag tag) {
+        unsupported();
+    }
+
+    @Override
+    public void removeEntity(int x, int y, int z, UUID uuid) {
+        unsupported();
+    }
+
+    @Override
+    public boolean setBiome(int x, int z, BaseBiome biome) {
+        return unsupported();
+    }
+
+    @Override
+    public void setChunk(FaweChunk chunk) {
+        unsupported();
+    }
+
+    @Override
+    public boolean next(int amount, long time) {
+        return unsupported();
+    }
+
+    @Override
+    public boolean regenerate(Region region, EditSession editSession) {
+        return unsupported();
+    }
+
+    @Override
+    public void clear() {
+        // do nothing - world is immutable
+    }
+
+    private boolean unsupported() {
+        throw new UnsupportedOperationException("World is immutable");
+    }
+}
diff --git a/core/src/main/java/com/boydti/fawe/object/brush/visualization/VirtualWorld.java b/core/src/main/java/com/boydti/fawe/object/brush/visualization/VirtualWorld.java
new file mode 100644
index 00000000..0f87a0e9
--- /dev/null
+++ b/core/src/main/java/com/boydti/fawe/object/brush/visualization/VirtualWorld.java
@@ -0,0 +1,51 @@
+package com.boydti.fawe.object.brush.visualization;
+
+import com.boydti.fawe.object.FaweChunk;
+import com.boydti.fawe.object.FawePlayer;
+import com.boydti.fawe.object.FaweQueue;
+import com.sk89q.worldedit.Vector;
+import com.sk89q.worldedit.WorldEditException;
+import com.sk89q.worldedit.blocks.BaseBlock;
+import com.sk89q.worldedit.entity.Player;
+import com.sk89q.worldedit.event.platform.BlockInteractEvent;
+import com.sk89q.worldedit.event.platform.PlayerInputEvent;
+import com.sk89q.worldedit.world.SimpleWorld;
+import java.io.Closeable;
+import java.io.IOException;
+
+public interface VirtualWorld extends SimpleWorld, FaweQueue, Closeable {
+    Vector getOrigin();
+
+    FaweChunk getSnapshot(int chunkX, int chunkZ);
+
+    @Override
+    int getMaxY();
+
+    @Override
+    boolean setBlock(Vector pt, BaseBlock block) throws WorldEditException;
+
+    @Override
+    default Vector getMaximumPoint() {
+        return FaweQueue.super.getMaximumPoint();
+    }
+
+    @Override
+    default Vector getMinimumPoint() {
+        return FaweQueue.super.getMinimumPoint();
+    }
+
+    FawePlayer getPlayer();
+
+    void update();
+
+    @Override
+    default void close() throws IOException {
+        close(true);
+    }
+
+    void close(boolean update) throws IOException;
+
+    default void handleBlockInteract(Player player, Vector pos, BlockInteractEvent event) {}
+
+    default void handlePlayerInput(Player player, PlayerInputEvent event) {}
+}
diff --git a/core/src/main/java/com/boydti/fawe/object/changeset/CFIChangeSet.java b/core/src/main/java/com/boydti/fawe/object/changeset/CFIChangeSet.java
index a6793f34..de448e6e 100644
--- a/core/src/main/java/com/boydti/fawe/object/changeset/CFIChangeSet.java
+++ b/core/src/main/java/com/boydti/fawe/object/changeset/CFIChangeSet.java
@@ -20,7 +20,7 @@ public class CFIChangeSet extends FaweChangeSet {
 
     public CFIChangeSet(HeightMapMCAGenerator hmmg, UUID uuid) throws IOException {
         super(hmmg);
-        File folder = MainUtil.getFile(Fawe.imp().getDirectory(), Settings.IMP.PATHS.HISTORY + File.separator + uuid + File.separator + hmmg.getWorldName());
+        File folder = MainUtil.getFile(Fawe.imp().getDirectory(), Settings.IMP.PATHS.HISTORY + File.separator + uuid + File.separator + "CFI" + File.separator + hmmg.getWorldName());
         int max = MainUtil.getMaxFileId(folder);
         this.file = new File(folder, Integer.toString(max) + ".cfi");
         File parent = this.file.getParentFile();
diff --git a/core/src/main/java/com/boydti/fawe/object/clipboard/MultiClipboardHolder.java b/core/src/main/java/com/boydti/fawe/object/clipboard/MultiClipboardHolder.java
index 857c4022..68c8a0d0 100644
--- a/core/src/main/java/com/boydti/fawe/object/clipboard/MultiClipboardHolder.java
+++ b/core/src/main/java/com/boydti/fawe/object/clipboard/MultiClipboardHolder.java
@@ -6,9 +6,7 @@ import com.sk89q.worldedit.extent.clipboard.Clipboard;
 import com.sk89q.worldedit.session.ClipboardHolder;
 import com.sk89q.worldedit.world.registry.WorldData;
 import java.net.URI;
-import java.util.ArrayList;
-import java.util.List;
-import java.util.UUID;
+import java.util.*;
 
 
 import static com.google.common.base.Preconditions.checkNotNull;
@@ -139,6 +137,18 @@ public class MultiClipboardHolder extends URIClipboardHolder {
         return available[index];
     }
 
+    @Override
+    public Set<URI> getURIs() {
+        Set<URI> set = new HashSet<>();
+        for (ClipboardHolder holder : getHolders()) {
+            if (holder instanceof URIClipboardHolder) {
+                URI uri = ((URIClipboardHolder) holder).getUri();
+                if (!uri.toString().isEmpty()) set.add(uri);
+            }
+        }
+        return set;
+    }
+
     @Override
     public void close() {
         cached = null;
diff --git a/core/src/main/java/com/boydti/fawe/object/clipboard/URIClipboardHolder.java b/core/src/main/java/com/boydti/fawe/object/clipboard/URIClipboardHolder.java
index de1db2c5..108ce264 100644
--- a/core/src/main/java/com/boydti/fawe/object/clipboard/URIClipboardHolder.java
+++ b/core/src/main/java/com/boydti/fawe/object/clipboard/URIClipboardHolder.java
@@ -4,6 +4,8 @@ import com.sk89q.worldedit.extent.clipboard.Clipboard;
 import com.sk89q.worldedit.session.ClipboardHolder;
 import com.sk89q.worldedit.world.registry.WorldData;
 import java.net.URI;
+import java.util.Collections;
+import java.util.Set;
 
 
 import static com.google.common.base.Preconditions.checkNotNull;
@@ -30,4 +32,8 @@ public class URIClipboardHolder extends ClipboardHolder {
     public URI getUri() {
         return uri;
     }
+
+    public Set<URI> getURIs() {
+        return Collections.singleton(uri);
+    }
 }
diff --git a/core/src/main/java/com/boydti/fawe/object/schematic/visualizer/SchemVis.java b/core/src/main/java/com/boydti/fawe/object/schematic/visualizer/SchemVis.java
new file mode 100644
index 00000000..75fabb28
--- /dev/null
+++ b/core/src/main/java/com/boydti/fawe/object/schematic/visualizer/SchemVis.java
@@ -0,0 +1,553 @@
+package com.boydti.fawe.object.schematic.visualizer;
+
+import com.boydti.fawe.config.BBC;
+import com.boydti.fawe.jnbt.anvil.MCAChunk;
+import com.boydti.fawe.jnbt.anvil.MCAQueue;
+import com.boydti.fawe.object.*;
+import com.boydti.fawe.object.brush.visualization.ImmutableVirtualWorld;
+import com.boydti.fawe.object.clipboard.LazyClipboardHolder;
+import com.boydti.fawe.object.clipboard.MultiClipboardHolder;
+import com.boydti.fawe.object.clipboard.URIClipboardHolder;
+import com.boydti.fawe.object.exception.FaweException;
+import com.boydti.fawe.object.queue.LazyFaweChunk;
+import com.boydti.fawe.object.schematic.Schematic;
+import com.boydti.fawe.util.*;
+import com.google.common.io.ByteSource;
+import com.google.common.io.Files;
+import com.sk89q.jnbt.NBTInputStream;
+import com.sk89q.jnbt.NBTOutputStream;
+import com.sk89q.worldedit.*;
+import com.sk89q.worldedit.Vector;
+import com.sk89q.worldedit.blocks.BlockID;
+import com.sk89q.worldedit.entity.Player;
+import com.sk89q.worldedit.event.platform.PlayerInputEvent;
+import com.sk89q.worldedit.extent.clipboard.Clipboard;
+import com.sk89q.worldedit.extent.clipboard.io.ClipboardFormat;
+import com.sk89q.worldedit.extent.clipboard.io.ClipboardReader;
+import com.sk89q.worldedit.session.ClipboardHolder;
+import com.sk89q.worldedit.util.Location;
+import com.sk89q.worldedit.util.TargetBlock;
+import com.sk89q.worldedit.world.registry.WorldData;
+import it.unimi.dsi.fastutil.longs.Long2ObjectMap;
+import it.unimi.dsi.fastutil.longs.Long2ObjectOpenHashMap;
+import it.unimi.dsi.fastutil.objects.ObjectIterator;
+import java.io.*;
+import java.net.URI;
+import java.nio.file.LinkOption;
+import java.nio.file.Path;
+import java.util.*;
+
+/**
+ * An Immutable virtual world used to display & select schematics
+ */
+public class SchemVis extends ImmutableVirtualWorld {
+    private final WorldData worldData;
+
+    private final Long2ObjectOpenHashMap<Map.Entry<File, Long>> files;
+    private final Long2ObjectOpenHashMap<MCAChunk> chunks; // TODO use soft references OR clear chunks outside view distance
+
+    private final MutableBlockVector2D lastPos = new MutableBlockVector2D();
+    private final FawePlayer player;
+    private final Location origin;
+    private final BlockVector2D chunkOffset;
+
+    public SchemVis(FawePlayer player) {
+        this.files = new Long2ObjectOpenHashMap<>();
+        this.chunks = new Long2ObjectOpenHashMap<>();
+        this.player = player;
+        this.worldData = player.getWorld().getWorldData();
+
+        // Set the origin to somewhere around where the player currently is
+        FaweLocation pos = player.getLocation();
+        this.origin = player.getPlayer().getLocation();
+        this.chunkOffset = new BlockVector2D(pos.x >> 4,pos.z >> 4);
+    }
+
+    @Override
+    public void handlePlayerInput(Player player, PlayerInputEvent event) {
+        int range = 240;
+        BlockWorldVector target = new TargetBlock(player, range, 0.2).getAnyTargetBlock();
+        if (target != null) {
+            int chunkX = target.getBlockX() >> 4;
+            int chunkZ = target.getBlockZ() >> 4;
+            long pos = MathMan.pairInt(chunkX, chunkZ);
+            Map.Entry<File, Long> entry = files.get(pos);
+            if (entry != null) {
+                File cachedFile = entry.getKey();
+                String filename = cachedFile.getName();
+                // get non `.cached` file
+                File file = new File(cachedFile.getParentFile(), filename.substring(1, filename.length() - 7));
+                URI uri = file.toURI();
+
+                ClipboardFormat format = ClipboardFormat.findByFile(file);
+                if (format != null) {
+                    LocalSession session = this.player.getSession();
+                    try {
+                        synchronized (this) {
+                            switch (event.getInputType()) {
+                                case PRIMARY: // set clipboard
+                                    format.hold(player, uri, new FileInputStream(file));
+                                    BBC.SCHEMATIC_LOADED.send(player, filename);
+                                    session.setVirtualWorld(null);
+                                    break;
+                                case SECONDARY: // add/remove clipboard
+                                    ClipboardHolder existing = session.getExistingClipboard();
+
+                                    boolean contains = existing instanceof URIClipboardHolder && ((URIClipboardHolder) existing).contains(uri);
+                                    if (contains) {
+                                        // Remove it
+                                        if (existing instanceof MultiClipboardHolder) {
+                                            MultiClipboardHolder multi = ((MultiClipboardHolder) existing);
+                                            multi.remove(uri);
+                                            if (multi.getClipboards().isEmpty()) session.setClipboard(null);
+                                        } else {
+                                            session.setClipboard(null);
+                                        }
+                                        BBC.CLIPBOARD_CLEARED.send(player);
+                                    } else {
+                                        // Add it
+                                        ByteSource source = Files.asByteSource(file);
+                                        MultiClipboardHolder multi = new MultiClipboardHolder(URI.create(""), worldData, new LazyClipboardHolder(uri, source, format, worldData, null));
+                                        session.addClipboard(multi);
+                                        BBC.SCHEMATIC_LOADED.send(player, filename);
+                                    }
+
+                                    // Resend relevant chunks
+                                    FaweQueue packetQueue = SetQueue.IMP.getNewQueue(this.player.getWorld(), true, false);
+                                    if (packetQueue.supports(Capability.CHUNK_PACKETS)) {
+                                        ArrayDeque<Long> toSend = new ArrayDeque<>();
+                                        int OX = chunkOffset.getBlockX();
+                                        int OZ = chunkOffset.getBlockZ();
+                                        ObjectIterator<Long2ObjectMap.Entry<MCAChunk>> iter = chunks.long2ObjectEntrySet().fastIterator();
+                                        while (iter.hasNext()) {
+                                            Long2ObjectMap.Entry<MCAChunk> mcaChunkEntry = iter.next();
+                                            long curChunkPos = mcaChunkEntry.getLongKey();
+                                            Map.Entry<File, Long> curFileEntry = files.get(curChunkPos);
+                                            if (curFileEntry != null && curFileEntry == entry) {
+                                                MCAChunk chunk = mcaChunkEntry.getValue();
+                                                if (contains) {
+                                                    iter.remove();
+                                                }
+                                                else select(chunk);
+                                                toSend.add(curChunkPos);
+                                            }
+                                        }
+                                        for (long curChunkPos : toSend) send(packetQueue, MathMan.unpairIntX(curChunkPos), MathMan.unpairIntY(curChunkPos));
+                                    }
+
+                                    break;
+                            }
+                        }
+                    } catch (IOException e) {
+                        throw new RuntimeException(e);
+                    }
+                }
+            }
+        }
+    }
+
+    /**
+     * Discard chunks outside FOV
+     */
+    private void clean() {
+        if (chunks.size() > 225) {
+            TaskManager.IMP.sync(() -> {
+                if (chunks.size() > 225) {
+                    synchronized (SchemVis.this) {
+                        FaweLocation pos = player.getLocation();
+                        int centerX = pos.x >> 4;
+                        int centerZ = pos.z >> 4;
+                        ObjectIterator<Long2ObjectMap.Entry<MCAChunk>> iter = chunks.long2ObjectEntrySet().fastIterator();
+                        while (iter.hasNext()) {
+                            Long2ObjectMap.Entry<MCAChunk> entry = iter.next();
+                            long pair = entry.getLongKey();
+                            int chunkX = MathMan.unpairIntX(pair);
+                            int chunkZ = MathMan.unpairIntY(pair);
+                            if (Math.abs(centerX - chunkX) > 15 || Math.abs(centerZ - chunkZ) > 15) {
+                                iter.remove();
+                            }
+                        }
+                    }
+                }
+                return null;
+            });
+        }
+    }
+
+    /**
+     * Send a chunk
+     * @param packetQueue
+     * @param chunkX
+     * @param chunkZ
+     */
+    private void send(FaweQueue packetQueue, int chunkX, int chunkZ) {
+        TaskManager.IMP.getPublicForkJoinPool().submit(() -> {
+            try {
+                int OX = chunkOffset.getBlockX();
+                int OZ = chunkOffset.getBlockZ();
+                FaweChunk toSend = getSnapshot(chunkX, chunkZ);
+                toSend.setLoc(SchemVis.this, chunkX + OX, chunkZ + OZ);
+                packetQueue.sendChunkUpdate(toSend, SchemVis.this.player);
+            } catch (Throwable e) {
+                e.printStackTrace();
+            }
+        });
+    }
+
+    /**
+     * The offset for this virtual world
+     * @return offset vector
+     */
+    @Override
+    public Vector getOrigin() {
+        return new BlockVector(chunkOffset.getBlockX() << 4, 0, chunkOffset.getBlockZ() << 4);
+    }
+
+    /**
+     * @param chunkX
+     * @param chunkZ
+     * @return The schematic file visualized at a chunk position
+     */
+    private File getFile(int chunkX, int chunkZ) {
+        long pair = MathMan.pairInt(chunkX, chunkZ);
+        Map.Entry<File, Long> entry = files.get(pair);
+        return entry != null ? entry.getKey() : null;
+    }
+
+    private Map.Entry<File, Long> getEntry(File file, long position) {
+        return new AbstractMap.SimpleEntry(file, position);
+    }
+
+    /**
+     * Replace the blocks with glass, to indicate it's been selected
+     * @param chunk
+     */
+    private void select(MCAChunk chunk) {
+        for (int layer = 0; layer < 16; layer++) {
+            byte[] ids = chunk.ids[layer];
+            if (ids != null) {
+                for (int i = 0; i < ids.length; i++) {
+                    if (ids[i] != 0) ids[i] = BlockID.STAINED_GLASS;
+                    Arrays.fill(chunk.data[layer], (byte) 0);
+                }
+            }
+        }
+    }
+
+    /**
+     * Cache a chunk
+     * @param file
+     * @param chunk
+     */
+    private void cacheChunk(File file, MCAChunk chunk, boolean selected) {
+        long pair = MathMan.pairInt(chunk.getX(), chunk.getZ());
+        // Light chunk
+        for (int layer = 0; layer < 16; layer++) {
+            if (chunk.skyLight[layer] != null) {
+                Arrays.fill(chunk.skyLight[layer], (byte) 255);
+            }
+        }
+        if (selected) {
+            select(chunk);
+        }
+        synchronized (this) {
+            chunks.put(pair, chunk);
+        }
+    }
+
+    /**
+     * Get the next free position for a schematic of the provided dimensions
+     * @param schemDimensions
+     * @return
+     */
+    private BlockVector2D registerAndGetChunkOffset(BlockVector schemDimensions, File file) {
+        int chunkX = schemDimensions.getBlockX() >> 4;
+        int chunkZ = schemDimensions.getBlockZ() >> 4;
+        MutableBlockVector2D pos2 = new MutableBlockVector2D();
+        MutableBlockVector2D curPos = lastPos;
+        // Find next free position
+        while (!isAreaFree(curPos, pos2.setComponents(curPos.getBlockX() + chunkX, curPos.getBlockZ() + chunkZ))) {
+            if (curPos == lastPos && !files.containsKey(MathMan.pairInt(curPos.getBlockX(), curPos.getBlockZ()))) {
+                curPos = new MutableBlockVector2D();
+                curPos.setComponents(lastPos.getBlockX(), lastPos.getBlockZ());
+            }
+            curPos.nextPosition();
+        }
+        // Register the chunks
+        Map.Entry<File, Long> originValue = getEntry(file, MathMan.pairInt(curPos.getBlockX(), curPos.getBlockZ()));
+        for (int x = 0; x <= chunkX; x++) {
+            for (int z = 0; z <= chunkZ; z++) {
+                long pos = MathMan.pairInt(curPos.getBlockX() + x, curPos.getBlockZ() + z);
+                files.put(pos, originValue);
+            }
+        }
+        return curPos;
+    }
+
+    private boolean isAreaFree(BlockVector2D chunkPos1, BlockVector2D chunkPos2 /* inclusive */) {
+        for (int x = chunkPos1.getBlockX(); x <= chunkPos2.getBlockX(); x++) {
+            for (int z = chunkPos1.getBlockZ(); z <= chunkPos2.getBlockZ(); z++) {
+                if (files.containsKey(MathMan.pairInt(x, z)) || (x == 0 && z == 0)) return false;
+            }
+        }
+        return true;
+    }
+
+    private boolean isSelected(File file) {
+        ClipboardHolder clipboard = player.getSession().getExistingClipboard();
+        if (clipboard != null) {
+            if (clipboard instanceof URIClipboardHolder) {
+                return ((URIClipboardHolder) clipboard).contains(file.toURI());
+            }
+        }
+        return false;
+    }
+
+    public void add(File file) throws IOException {
+        File cached = new File(file.getParentFile(), "." + file.getName() + ".cached");
+        if (cached.exists() && file.lastModified() <= cached.lastModified()) {
+            try (FileInputStream fis = new FileInputStream(cached)) {
+                BlockVector dimensions = new BlockVector(IOUtil.readVarInt(fis), IOUtil.readVarInt(fis), IOUtil.readVarInt(fis));
+                BlockVector2D offset = registerAndGetChunkOffset(dimensions, cached);
+            }
+        } else {
+            try {
+                player.sendMessage(BBC.getPrefix() + "Converting: " + file);
+                cached.createNewFile();
+                try (FileInputStream in = new FileInputStream(file)) {
+                    ClipboardFormat format = ClipboardFormat.findByFile(file);
+                    ClipboardReader reader = format.getReader(in);
+                    Clipboard clipboard = reader.read(worldData);
+                    clipboard.setOrigin(clipboard.getMinimumPoint());
+                    try {
+                        MCAQueue queue = new MCAQueue(null, null, false);
+                        BlockVector dimensions = clipboard.getDimensions().toBlockVector();
+                        BlockVector2D offset = registerAndGetChunkOffset(dimensions, cached);
+                        new Schematic(clipboard).paste(queue, Vector.ZERO, true);
+                        try (FileOutputStream fos = new FileOutputStream(cached)) {
+                            IOUtil.writeVarInt(fos, dimensions.getBlockX());
+                            IOUtil.writeVarInt(fos, dimensions.getBlockY());
+                            IOUtil.writeVarInt(fos, dimensions.getBlockZ());
+
+                            try (FaweOutputStream cos = MainUtil.getCompressedOS(fos, 2)) {
+                                NBTOutputStream nos = new NBTOutputStream((DataOutput) cos);
+                                Collection<FaweChunk> writeChunks = queue.getFaweChunks();
+                                cos.writeInt(writeChunks.size());
+
+                                boolean selected = isSelected(file);
+
+                                for (FaweChunk chunk : writeChunks) {
+                                    MCAChunk mcaChunk = ((MCAChunk) chunk);
+                                    mcaChunk.write(nos);
+                                    mcaChunk.setLoc(this, mcaChunk.getX() + offset.getBlockX(), mcaChunk.getZ() + offset.getBlockZ());
+                                    if (Math.abs(mcaChunk.getX()) <= 15 && Math.abs(mcaChunk.getZ()) <= 15) {
+                                        cacheChunk(cached, mcaChunk, selected);
+                                    }
+                                }
+                            }
+                        }
+                        if (System.getProperty("os.name").contains("Windows")) {
+                            Path path = cached.toPath();
+                            Object hidden = java.nio.file.Files.getAttribute(path, "dos:hidden", LinkOption.NOFOLLOW_LINKS);
+                            if (hidden != null) {
+                                //link file to DosFileAttributes
+                                java.nio.file.Files.setAttribute(path, "dos:hidden", Boolean.TRUE, LinkOption.NOFOLLOW_LINKS);
+                            }
+                        }
+                    } finally {
+                        if (clipboard instanceof Closeable) {
+                            ((Closeable) clipboard).close();
+                        }
+                    }
+                }
+            } catch (Throwable e) {
+                e.printStackTrace();
+                cached.delete();
+            }
+        }
+    }
+
+    private synchronized MCAChunk getCachedChunk(int chunkX, int chunkZ) {
+        return chunks.get(MathMan.pairInt(chunkX, chunkZ));
+    }
+
+    private MCAChunk getChunk(int chunkX, int chunkZ) {
+        long pair = MathMan.pairInt(chunkX, chunkZ);
+        // Check cached
+        MCAChunk chunk = getCachedChunk(chunkX, chunkZ);
+        if (chunk != null) return chunk;
+
+        // We need to cache it
+        Map.Entry<File, Long> entry = files.get(pair);
+        if (entry != null) {
+            File cached = entry.getKey();
+
+            // Guard caching by other threads
+            synchronized (cached) {
+                chunk = getCachedChunk(chunkX, chunkZ);
+
+                // Read chunks from disk
+                if (chunk == null) {
+                    clean();
+                    String filename = cached.getName();
+                    File file = new File(cached.getParentFile(), filename.substring(1, filename.length() - 7));
+                    boolean selected = isSelected(file);
+
+                    long origin = entry.getValue();
+                    int OCX = MathMan.unpairIntX(origin);
+                    int OCZ = MathMan.unpairIntY(origin);
+                    try {
+                        try (FileInputStream fis = new FileInputStream(cached)) {
+                            BlockVector dimensions = new BlockVector(IOUtil.readVarInt(fis), IOUtil.readVarInt(fis), IOUtil.readVarInt(fis));
+                            try (FaweInputStream in = MainUtil.getCompressedIS(fis)) {
+                                try (NBTInputStream nis = new NBTInputStream(in)) {
+
+                                    int numChunks = in.readInt();
+                                    for (int i = 0; i < numChunks; i++) {
+                                        MCAChunk mcaChunk = new MCAChunk(nis, null, 0, 0, true);
+                                        mcaChunk.setLoc(this, mcaChunk.getX() + OCX, mcaChunk.getZ() + OCZ);
+                                        cacheChunk(cached, mcaChunk, selected);
+                                    }
+                                }
+                            }
+                        }
+                    } catch (IOException e) {
+                        e.printStackTrace();
+                    }
+                    // Return the cached chunk, or an empty one
+                    chunk = getCachedChunk(chunkX, chunkZ);
+                    if (chunk == null) {
+                        // TODO use shared chunk
+                        // TODO synchronize on sending chunk packet
+                        cacheChunk(cached, chunk = new MCAChunk(this, chunkX, chunkZ), selected);
+                    }
+                }
+            }
+        } else {
+            chunk = new MCAChunk(this, chunkX, chunkZ);
+        }
+        return chunk;
+    }
+
+    /**
+     * Return a lazily evaluated chunk
+     * @param chunkX
+     * @param chunkZ
+     * @return lazy chunk
+     */
+    @Override
+    public FaweChunk getSnapshot(int chunkX, int chunkZ) {
+        return new LazyFaweChunk<MCAChunk>(this, chunkX, chunkZ) {
+            @Override
+            public MCAChunk getChunk() {
+                MCAChunk tmp = SchemVis.this.getChunk(chunkX, chunkZ);
+                tmp.setLoc(SchemVis.this, getX(), getZ());
+                return tmp;
+            }
+
+            @Override
+            public void addToQueue() {
+                MCAChunk cached = getCachedChunk();
+                if (cached != null) setChunk(cached);
+            }
+        };
+    }
+
+    @Override
+    public WorldData getWorldData() {
+        return worldData;
+    }
+
+    @Override
+    public FawePlayer getPlayer() {
+        return player;
+    }
+
+    public void bind() {
+        player.setVirtualWorld(this);
+    }
+
+    /**
+     * Send all chunks to the player
+     */
+    @Override
+    public void update() {
+        FaweQueue packetQueue = SetQueue.IMP.getNewQueue(player.getWorld(), true, false);
+
+        if (!packetQueue.supports(Capability.CHUNK_PACKETS)) {
+            return;
+        }
+
+        int OX = chunkOffset.getBlockX();
+        int OZ = chunkOffset.getBlockZ();
+
+        FaweLocation position = player.getLocation();
+        int pcx = (position.x >> 4) - OX;
+        int pcz = (position.z >> 4) - OZ;
+
+        int scx = pcx - 15;
+        int scz = pcz - 15;
+        int ecx = pcx + 15;
+        int ecz = pcz + 15;
+
+        for (int cz = scz; cz <= ecz; cz++) {
+            for (int cx = scx; cx <= ecx; cx++) {
+                final int finalCX = cx;
+                final int finalCZ = cz;
+                send(packetQueue, finalCX, finalCZ);
+            }
+        }
+    }
+
+    @Override
+    public void sendChunk(FaweChunk chunk) { /* do nothing - never used  */ }
+
+    @Override
+    public void sendChunk(int x, int z, int bitMask) { /* do nothing - never used*/ }
+
+    @Override
+    public int getBiomeId(int x, int z) throws FaweException.FaweChunkLoadException {
+        // TODO later (currently not used)
+        return 0;
+    }
+
+    @Override
+    public int getCombinedId4Data(int x, int y, int z) throws FaweException.FaweChunkLoadException {
+        MCAChunk chunk = getChunk(x >> 4, z >> 4);
+        if (y < 0 || y > 255) return 0;
+        return chunk.getBlockCombinedId(x & 15, y, z & 15);
+    }
+
+    /**
+     * Closes this virtual world and sends the normal world chunks to the player
+     * @throws IOException
+     */
+    @Override
+    public synchronized void close(boolean update) throws IOException {
+        clear();
+        chunks.clear();
+        files.clear();
+        player.getPlayer().setPosition(origin.toVector(), origin.getPitch(), origin.getYaw());
+        if (update) {
+            FaweQueue packetQueue = SetQueue.IMP.getNewQueue(player.getWorld(), true, false);
+
+            int OX = chunkOffset.getBlockX();
+            int OZ = chunkOffset.getBlockZ();
+
+            FaweLocation position = player.getLocation();
+            int pcx = (position.x >> 4) - OX;
+            int pcz = (position.z >> 4) - OZ;
+
+            int scx = pcx - 15;
+            int scz = pcz - 15;
+            int ecx = pcx + 15;
+            int ecz = pcz + 15;
+
+            for (int cz = scz; cz <= ecz; cz++) {
+                for (int cx = scx; cx <= ecx; cx++) {
+                    packetQueue.sendChunk(cx + OX, cz + OZ, 0);
+                }
+            }
+        }
+    }
+}
diff --git a/core/src/main/java/com/boydti/fawe/util/IOUtil.java b/core/src/main/java/com/boydti/fawe/util/IOUtil.java
new file mode 100644
index 00000000..3ad0a8d4
--- /dev/null
+++ b/core/src/main/java/com/boydti/fawe/util/IOUtil.java
@@ -0,0 +1,56 @@
+package com.boydti.fawe.util;
+
+import java.io.*;
+import java.net.URI;
+
+public final class IOUtil {
+    public InputStream toInputStream(URI uri) throws IOException {
+        String scheme = uri.getScheme();
+        switch (scheme.toLowerCase()) {
+            case "file":
+                return new FileInputStream(uri.getPath());
+            case "http":
+            case "https":
+                return uri.toURL().openStream();
+            default:
+                return null;
+        }
+    }
+
+    public static final int readInt(InputStream in) throws IOException {
+        int ch1 = in.read();
+        int ch2 = in.read();
+        int ch3 = in.read();
+        int ch4 = in.read();
+        if ((ch1 | ch2 | ch3 | ch4) < 0)
+            throw new EOFException();
+        return ((ch1 << 24) + (ch2 << 16) + (ch3 << 8) + (ch4 << 0));
+    }
+
+    public static final void writeInt(OutputStream out, int v) throws IOException {
+        out.write((v >>> 24) & 0xFF);
+        out.write((v >>> 16) & 0xFF);
+        out.write((v >>>  8) & 0xFF);
+        out.write((v >>>  0) & 0xFF);
+    }
+
+    public static void writeVarInt(OutputStream out, int i) throws IOException {
+        while((i & -128) != 0) {
+            out.write(i & 127 | 128);
+            i >>>= 7;
+        }
+        out.write(i);
+    }
+
+    public static int readVarInt(InputStream in) throws IOException {
+        int i = 0;
+        int offset = 0;
+        int b;
+        while ((b = in.read()) > 127) {
+            i |= (b - 128) << offset;
+            offset += 7;
+        }
+        i |= b << offset;
+        return i;
+    }
+}
diff --git a/core/src/main/java/com/sk89q/worldedit/BlockVector.java b/core/src/main/java/com/sk89q/worldedit/BlockVector.java
index 20965c52..9f007c12 100644
--- a/core/src/main/java/com/sk89q/worldedit/BlockVector.java
+++ b/core/src/main/java/com/sk89q/worldedit/BlockVector.java
@@ -19,6 +19,8 @@
 
 package com.sk89q.worldedit;
 
+import java.io.IOException;
+
 /**
  * Extension of {@code Vector} that that compares with other instances
  * using integer components.
@@ -93,6 +95,19 @@ public class BlockVector extends Vector {
         return ((int) getX() ^ ((int) getZ() << 16)) ^ ((int) getY() << 30);
     }
 
+    private void writeObject(java.io.ObjectOutputStream stream) throws IOException {
+        if (!(this instanceof MutableBlockVector)) {
+            stream.writeInt(getBlockX());
+            stream.writeInt(getBlockY());
+            stream.writeInt(getBlockZ());
+        }
+    }
+
+    private void readObject(java.io.ObjectInputStream stream) throws IOException, ClassNotFoundException {
+        if (this instanceof MutableBlockVector) return;
+        this.setComponents(stream.readInt(), stream.readInt(), stream.readInt());
+    }
+
     @Override
     public BlockVector toBlockVector() {
         return this;
diff --git a/core/src/main/java/com/sk89q/worldedit/EditSession.java b/core/src/main/java/com/sk89q/worldedit/EditSession.java
index c04f7af0..6c79defc 100644
--- a/core/src/main/java/com/sk89q/worldedit/EditSession.java
+++ b/core/src/main/java/com/sk89q/worldedit/EditSession.java
@@ -25,12 +25,12 @@ import com.boydti.fawe.FaweCache;
 import com.boydti.fawe.config.BBC;
 import com.boydti.fawe.config.Settings;
 import com.boydti.fawe.example.MappedFaweQueue;
-import com.boydti.fawe.jnbt.anvil.HeightMapMCAGenerator;
 import com.boydti.fawe.jnbt.anvil.MCAQueue;
 import com.boydti.fawe.jnbt.anvil.MCAWorld;
 import com.boydti.fawe.logging.LoggingChangeSet;
 import com.boydti.fawe.logging.rollback.RollbackOptimizedHistory;
 import com.boydti.fawe.object.*;
+import com.boydti.fawe.object.brush.visualization.VirtualWorld;
 import com.boydti.fawe.object.changeset.*;
 import com.boydti.fawe.object.clipboard.WorldCopyClipboard;
 import com.boydti.fawe.object.collection.LocalBlockVectorSet;
@@ -297,7 +297,7 @@ public class EditSession extends AbstractDelegateExtent implements HasFaweQueue,
             }
         }
         if (allowedRegions == null) {
-            if (player != null && !player.hasPermission("fawe.bypass") && !player.hasPermission("fawe.bypass.regions") && !(queue instanceof HeightMapMCAGenerator)) {
+            if (player != null && !player.hasPermission("fawe.bypass") && !player.hasPermission("fawe.bypass.regions") && !(queue instanceof VirtualWorld)) {
                 allowedRegions = player.getCurrentRegions();
             }
         }
diff --git a/core/src/main/java/com/sk89q/worldedit/LocalSession.java b/core/src/main/java/com/sk89q/worldedit/LocalSession.java
index d3361d49..b7938f9a 100644
--- a/core/src/main/java/com/sk89q/worldedit/LocalSession.java
+++ b/core/src/main/java/com/sk89q/worldedit/LocalSession.java
@@ -26,9 +26,11 @@ import com.boydti.fawe.object.FaweInputStream;
 import com.boydti.fawe.object.FaweLimit;
 import com.boydti.fawe.object.FaweOutputStream;
 import com.boydti.fawe.object.FawePlayer;
+import com.boydti.fawe.object.brush.visualization.VirtualWorld;
 import com.boydti.fawe.object.changeset.AnvilHistory;
 import com.boydti.fawe.object.changeset.DiskStorageHistory;
 import com.boydti.fawe.object.changeset.FaweChangeSet;
+import com.boydti.fawe.object.clipboard.MultiClipboardHolder;
 import com.boydti.fawe.object.collection.SparseBitSet;
 import com.boydti.fawe.object.extent.ResettableExtent;
 import com.boydti.fawe.util.EditSessionBuilder;
@@ -41,12 +43,7 @@ import com.sk89q.jchronic.Options;
 import com.sk89q.jchronic.utils.Span;
 import com.sk89q.jchronic.utils.Time;
 import com.sk89q.worldedit.blocks.BaseBlock;
-import com.sk89q.worldedit.command.tool.BlockTool;
-import com.sk89q.worldedit.command.tool.BrushHolder;
-import com.sk89q.worldedit.command.tool.BrushTool;
-import com.sk89q.worldedit.command.tool.InvalidToolBindException;
-import com.sk89q.worldedit.command.tool.SinglePickaxe;
-import com.sk89q.worldedit.command.tool.Tool;
+import com.sk89q.worldedit.command.tool.*;
 import com.sk89q.worldedit.entity.Player;
 import com.sk89q.worldedit.extension.platform.Actor;
 import com.sk89q.worldedit.extent.inventory.BlockBag;
@@ -65,21 +62,10 @@ import com.sk89q.worldedit.session.ClipboardHolder;
 import com.sk89q.worldedit.session.request.Request;
 import com.sk89q.worldedit.world.World;
 import com.sk89q.worldedit.world.snapshot.Snapshot;
-import java.io.File;
-import java.io.FileFilter;
-import java.io.FileInputStream;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.util.Calendar;
-import java.util.Collections;
-import java.util.HashMap;
-import java.util.LinkedList;
-import java.util.List;
-import java.util.ListIterator;
-import java.util.Map;
-import java.util.TimeZone;
-import java.util.UUID;
+import java.io.*;
+import java.util.*;
 import java.util.concurrent.atomic.AtomicBoolean;
+import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
 
 
@@ -138,6 +124,8 @@ public class LocalSession {
     private transient UUID uuid;
     private transient volatile long historySize = 0;
 
+    private transient VirtualWorld virtual;
+
     // Saved properties
     private String lastScript;
     private RegionSelectorType defaultSelector;
@@ -733,6 +721,29 @@ public class LocalSession {
         return selector.getRegion();
     }
 
+    public synchronized @Nullable VirtualWorld getVirtualWorld() {
+        return virtual;
+    }
+
+    public void setVirtualWorld(@Nullable VirtualWorld world) {
+        VirtualWorld tmp;
+        synchronized (this) {
+            tmp = this.virtual;
+            this.virtual = world;
+        }
+        if (tmp != null) {
+            try {
+                tmp.close(world == null);
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        }
+        if (world != null) {
+            Fawe.imp().registerPacketListener();
+            world.update();
+        }
+    }
+
     /**
      * Get the selection world.
      *
@@ -785,6 +796,24 @@ public class LocalSession {
         return clipboard;
     }
 
+    public void addClipboard(@Nonnull MultiClipboardHolder toAppend) {
+        checkNotNull(toAppend);
+        ClipboardHolder existing = getExistingClipboard();
+        MultiClipboardHolder multi;
+        if (existing instanceof MultiClipboardHolder) {
+            multi = (MultiClipboardHolder) existing;
+            for (ClipboardHolder holder : toAppend.getHolders()) {
+                multi.add(holder);
+            }
+        } else  {
+            multi = toAppend;
+            if (existing != null) {
+                multi.add(existing);
+            }
+        }
+        setClipboard(multi);
+    }
+
     /**
      * Sets the clipboard.
      * <p>
diff --git a/core/src/main/java/com/sk89q/worldedit/MutableBlockVector2D.java b/core/src/main/java/com/sk89q/worldedit/MutableBlockVector2D.java
index 8b10c4dc..4141fd6b 100644
--- a/core/src/main/java/com/sk89q/worldedit/MutableBlockVector2D.java
+++ b/core/src/main/java/com/sk89q/worldedit/MutableBlockVector2D.java
@@ -78,4 +78,33 @@ public final class MutableBlockVector2D extends BlockVector2D implements Seriali
         this.x = stream.readInt();
         this.z = stream.readInt();
     }
+
+    public MutableBlockVector2D nextPosition() {
+        int absX = Math.abs(x);
+        int absY = Math.abs(z);
+        if (absX > absY) {
+            if (x > 0) {
+                return setComponents(x, z + 1);
+            } else {
+                return setComponents(x, z - 1);
+            }
+        } else if (absY > absX) {
+            if (z > 0) {
+                return setComponents(x - 1, z);
+            } else {
+                return setComponents(x + 1, z);
+            }
+        } else {
+            if (x == z && x > 0) {
+                return setComponents(x, z + 1);
+            }
+            if (x == absX) {
+                return setComponents(x, z + 1);
+            }
+            if (z == absY) {
+                return setComponents(x, z - 1);
+            }
+            return setComponents(x + 1, z);
+        }
+    }
 }
diff --git a/core/src/main/java/com/sk89q/worldedit/Vector.java b/core/src/main/java/com/sk89q/worldedit/Vector.java
index 6c69e83f..21052a4d 100644
--- a/core/src/main/java/com/sk89q/worldedit/Vector.java
+++ b/core/src/main/java/com/sk89q/worldedit/Vector.java
@@ -889,7 +889,7 @@ public class Vector implements Comparable<Vector>, Serializable {
     }
 
     private void writeObject(java.io.ObjectOutputStream stream) throws IOException {
-        if (!(this instanceof Vector)) {
+        if (!(this instanceof MutableBlockVector)) {
             stream.writeDouble(x);
             stream.writeDouble(y);
             stream.writeDouble(z);
diff --git a/core/src/main/java/com/sk89q/worldedit/command/GenerationCommands.java b/core/src/main/java/com/sk89q/worldedit/command/GenerationCommands.java
index 318e235e..8e5872ee 100644
--- a/core/src/main/java/com/sk89q/worldedit/command/GenerationCommands.java
+++ b/core/src/main/java/com/sk89q/worldedit/command/GenerationCommands.java
@@ -117,7 +117,7 @@ public class GenerationCommands extends MethodCommands {
     @Command(
             aliases = {"/image", "/img"},
             desc = "Generate an image",
-            usage = "<imgur> [randomize=true] [complexity=100]",
+            usage = "<imgur> [randomize=true] [complexity=100] [dimensions]",
             min = 1,
             max = 3
     )
diff --git a/core/src/main/java/com/sk89q/worldedit/command/SchematicCommands.java b/core/src/main/java/com/sk89q/worldedit/command/SchematicCommands.java
index 70fafc5a..4fc07b58 100644
--- a/core/src/main/java/com/sk89q/worldedit/command/SchematicCommands.java
+++ b/core/src/main/java/com/sk89q/worldedit/command/SchematicCommands.java
@@ -29,6 +29,7 @@ import com.boydti.fawe.object.clipboard.MultiClipboardHolder;
 import com.boydti.fawe.object.clipboard.URIClipboardHolder;
 import com.boydti.fawe.object.clipboard.remap.ClipboardRemapper;
 import com.boydti.fawe.object.schematic.StructureFormat;
+import com.boydti.fawe.object.schematic.visualizer.SchemVis;
 import com.boydti.fawe.util.MainUtil;
 import com.boydti.fawe.util.chat.Message;
 import com.sk89q.minecraft.util.commands.Command;
@@ -44,9 +45,7 @@ import com.sk89q.worldedit.extension.platform.Actor;
 import com.sk89q.worldedit.extent.clipboard.BlockArrayClipboard;
 import com.sk89q.worldedit.extent.clipboard.Clipboard;
 import com.sk89q.worldedit.extent.clipboard.io.ClipboardFormat;
-import com.sk89q.worldedit.extent.clipboard.io.ClipboardReader;
 import com.sk89q.worldedit.extent.clipboard.io.ClipboardWriter;
-import com.sk89q.worldedit.extent.clipboard.io.SchematicReader;
 import com.sk89q.worldedit.function.operation.Operations;
 import com.sk89q.worldedit.math.transform.Transform;
 import com.sk89q.worldedit.session.ClipboardHolder;
@@ -54,18 +53,15 @@ import com.sk89q.worldedit.util.command.binding.Switch;
 import com.sk89q.worldedit.util.command.parametric.Optional;
 import com.sk89q.worldedit.util.io.file.FilenameException;
 import com.sk89q.worldedit.world.registry.WorldData;
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.io.InputStream;
+import java.io.*;
 import java.net.URI;
 import java.net.URISyntaxException;
 import java.net.URL;
 import java.nio.channels.Channels;
 import java.nio.channels.ReadableByteChannel;
 import java.nio.file.Files;
-import java.util.UUID;
+import java.util.*;
+import java.util.concurrent.atomic.LongAdder;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 import java.util.regex.Pattern;
@@ -110,20 +106,7 @@ public class SchematicCommands extends MethodCommands {
 
             MultiClipboardHolder all = format.loadAllFromInput(player, wd, filename, true);
             if (all != null) {
-                ClipboardHolder existing = session.getExistingClipboard();
-                MultiClipboardHolder multi;
-                if (existing instanceof MultiClipboardHolder) {
-                    multi = (MultiClipboardHolder) existing;
-                    for (ClipboardHolder holder : all.getHolders()) {
-                        multi.add(holder);
-                    }
-                } else  {
-                    multi = all;
-                    if (existing != null) {
-                        multi.add(existing);
-                    }
-                }
-                session.setClipboard(multi);
+                session.addClipboard(all);
                 BBC.SCHEMATIC_LOADED.send(player, filename);
             }
         } catch (IOException e) {
@@ -274,18 +257,7 @@ public class SchematicCommands extends MethodCommands {
 
                 uri = f.toURI();
             }
-            final ClipboardReader reader = format.getReader(in);
-            final WorldData worldData = player.getWorld().getWorldData();
-            final Clipboard clipboard;
-            session.setClipboard(null);
-            if (reader instanceof SchematicReader) {
-                clipboard = ((SchematicReader) reader).read(player.getWorld().getWorldData(), player.getUniqueId());
-            } else if (reader instanceof StructureFormat) {
-                clipboard = ((StructureFormat) reader).read(player.getWorld().getWorldData(), player.getUniqueId());
-            } else {
-                clipboard = reader.read(player.getWorld().getWorldData());
-            }
-            session.setClipboard(new URIClipboardHolder(uri, clipboard, worldData));
+            format.hold(player, uri, in);
             BBC.SCHEMATIC_LOADED.send(player, filename);
         } catch (IllegalArgumentException e) {
             player.printError("Unknown filename: " + filename);
@@ -380,24 +352,107 @@ public class SchematicCommands extends MethodCommands {
         }
     }
 
-    @Command(aliases = {"delete", "d"}, usage = "<filename>", desc = "Delete a saved schematic", help = "Delete a schematic from the schematic list", min = 1, max = 1)
-    @CommandPermissions("worldedit.schematic.delete")
-    public void delete(final Player player, final LocalSession session, final CommandContext args) throws WorldEditException {
+    @Command(aliases = {"move", "m"}, usage = "<directory>", desc = "Move your loaded schematic", help = "Move your currently loaded schematics", min = 1, max = 1)
+    @CommandPermissions({"worldedit.schematic.move", "worldedit.schematic.move.other"})
+    public void move(final Player player, final LocalSession session, final CommandContext args) throws WorldEditException {
         final LocalConfiguration config = this.worldEdit.getConfiguration();
-        final String filename = args.getString(0);
-
         final File working = this.worldEdit.getWorkingDirectoryFile(config.saveDir);
         final File dir = Settings.IMP.PATHS.PER_PLAYER_SCHEMATICS ? new File(working, player.getUniqueId().toString()) : working;
-        final File f = this.worldEdit.getSafeSaveFile(player, dir, filename, "schematic", "schematic");
-        if (!f.exists()) {
-            player.printError("Schematic " + filename + " does not exist!");
+        File destDir = new File(dir, args.getString(0));
+        if (!MainUtil.isInSubDirectory(working, destDir)) {
+            player.printError("Directory " + destDir + " does not exist!");
             return;
         }
-        if (!f.delete()) {
-            player.printError("Deletion of " + filename + " failed! Maybe it is read-only.");
+        if (Settings.IMP.PATHS.PER_PLAYER_SCHEMATICS && !MainUtil.isInSubDirectory(dir, destDir) && !player.hasPermission("worldedit.schematic.move.other")) {
+            BBC.NO_PERM.send(player, "worldedit.schematic.move.other");
             return;
         }
-        BBC.FILE_DELETED.send(player, filename);
+        ClipboardHolder clipboard = session.getClipboard();
+        List<File> sources = getFiles(clipboard);
+        if (sources.isEmpty()) {
+            BBC.SCHEMATIC_NONE.send(player);
+            return;
+        }
+        if (!destDir.exists() && !destDir.mkdirs()) {
+            player.printError("Creation of " + destDir + " failed! (check file permissions)");
+            return;
+        }
+        for (File source : sources) {
+            File destFile = new File(destDir, source.getName());
+            if (destFile.exists()) {
+                BBC.SCHEMATIC_MOVE_EXISTS.send(player, destFile);
+                continue;
+            }
+            if (Settings.IMP.PATHS.PER_PLAYER_SCHEMATICS && (!MainUtil.isInSubDirectory(dir, destFile) || !MainUtil.isInSubDirectory(dir, source)) && !player.hasPermission("worldedit.schematic.delete.other")) {
+                BBC.SCHEMATIC_MOVE_FAILED.send(player, destFile, BBC.NO_PERM.f("worldedit.schematic.move.other"));
+                continue;
+            }
+            try {
+                File cached = new File(source.getParentFile(), "." + source.getName() + ".cached");
+                Files.move(source.toPath(), destFile.toPath());
+                if (cached.exists()) Files.move(cached.toPath(), destFile.toPath());
+                BBC.SCHEMATIC_MOVE_SUCCESS.send(player, source, destFile);
+            } catch (IOException e) {
+                throw new RuntimeException(e);
+            }
+        }
+    }
+
+    @Command(aliases = {"delete", "d"}, usage = "<filename|*>", desc = "Delete a saved schematic", help = "Delete a schematic from the schematic list", min = 1, max = 1)
+    @CommandPermissions({"worldedit.schematic.delete", "worldedit.schematic.other"})
+    public void delete(final Player player, final LocalSession session, final CommandContext args) throws WorldEditException {
+        final LocalConfiguration config = this.worldEdit.getConfiguration();
+        final File working = this.worldEdit.getWorkingDirectoryFile(config.saveDir);
+        final File dir = Settings.IMP.PATHS.PER_PLAYER_SCHEMATICS ? new File(working, player.getUniqueId().toString()) : working;
+        List<File> files = new ArrayList<>();
+
+        final String filename = args.getString(0);
+
+        if (filename.equalsIgnoreCase("*")) {
+            files.addAll(getFiles(session.getClipboard()));
+        } else {
+            files.add(new File(dir, filename));
+        }
+        if (files.isEmpty()) {
+            BBC.SCHEMATIC_NONE.send(player);
+            return;
+        }
+        for (File f : files) {
+            if (!MainUtil.isInSubDirectory(working, f) || !f.exists()) {
+                player.printError("Schematic " + filename + " does not exist! (" + f.exists() + "|" + f + "|" + (!MainUtil.isInSubDirectory(working, f)) + ")");
+                continue;
+            }
+            if (Settings.IMP.PATHS.PER_PLAYER_SCHEMATICS && !MainUtil.isInSubDirectory(dir, f) && !player.hasPermission("worldedit.schematic.delete.other")) {
+                BBC.NO_PERM.send(player, "worldedit.schematic.delete.other");
+                continue;
+            }
+            if (!delete(f)) {
+                player.printError("Deletion of " + filename + " failed! Maybe it is read-only.");
+                continue;
+            }
+            BBC.FILE_DELETED.send(player, filename);
+        }
+    }
+
+    private List<File> getFiles(ClipboardHolder clipboard) {
+        List<File> files = new ArrayList<>();
+        Collection<URI> uris = Collections.emptyList();
+        if (clipboard instanceof URIClipboardHolder) {
+            uris = ((URIClipboardHolder) clipboard).getURIs();
+        }
+        for (URI uri : uris) {
+            File file = new File(uri);
+            if (file.exists()) files.add(file);
+        }
+        return files;
+    }
+
+    private boolean delete(File file) {
+        if (file.delete()) {
+            new File(file.getParentFile(), "." + file.getName() + ".cached").delete();
+            return true;
+        }
+        return false;
     }
 
     @Command(aliases = {"formats", "listformats", "f"}, desc = "List available formats", max = 0)
@@ -424,6 +479,58 @@ public class SchematicCommands extends MethodCommands {
         m.send(actor);
     }
 
+
+    @Command(
+            aliases = {"show"},
+            desc = "Show a schematic",
+            usage = "[global|mine|<filter>] [page=1]",
+            min = 0,
+            max = -1,
+            flags = "dnp",
+            help = "List all schematics in the schematics directory\n" +
+                    " -p <page> prints the requested page\n" +
+                    " -f <format> restricts by format\n"
+    )
+    @CommandPermissions("worldedit.heightmap.list")
+    public void show(Player player, CommandContext args, @Switch('p') @Optional("1") int page) {
+        FawePlayer fp = FawePlayer.wrap(player);
+        if (args.argsLength() == 0 && fp.getSession().getVirtualWorld() != null) {
+            fp.setVirtualWorld(null);
+            return;
+        }
+        LocalConfiguration config = worldEdit.getConfiguration();
+        File dir = worldEdit.getWorkingDirectoryFile(config.saveDir);
+        try {
+            SchemVis visExtent = new SchemVis(fp);
+            LongAdder count = new LongAdder();
+            UtilityCommands.getFiles(dir, player, args, 0, Character.MAX_VALUE, null, Settings.IMP.PATHS.PER_PLAYER_SCHEMATICS, file -> {
+                if (file.isFile()) {
+                    try {
+                        visExtent.add(file);
+                        count.add(1);
+                    } catch (IOException e) {
+                        throw new RuntimeException(e);
+                    }
+                }
+            });
+            visExtent.bind();
+            visExtent.update();
+
+            String cmdPrefix = "/" + (config.noDoubleSlash ? "" : "/");
+            String cmdShow = Commands.getAlias(ClipboardCommands.class, "schematic") + " " + Commands.getAlias(ClipboardCommands.class, "show");
+            BBC.SCHEMATIC_SHOW.send(fp, count.longValue(), args.getJoinedStrings(0), cmdShow);
+
+            if (fp.getSession().getExistingClipboard() != null) {
+                String cmd = cmdPrefix + Commands.getAlias(ClipboardCommands.class, "clipboard") + " " + Commands.getAlias(ClipboardCommands.class, "clear");
+                BBC.SCHEMATIC_PROMPT_CLEAR.send(fp, cmd);
+            }
+
+        } catch (Throwable e) {
+            fp.setVirtualWorld(null);
+            throw e;
+        }
+    }
+
     @Command(
             aliases = {"list", "ls", "all"},
             desc = "List saved schematics",
@@ -454,7 +561,7 @@ public class SchematicCommands extends MethodCommands {
 
         URIClipboardHolder multi = as(URIClipboardHolder.class, fp.getSession().getExistingClipboard());
 
-        UtilityCommands.list(dir, actor, args, page, formatName, Settings.IMP.PATHS.PER_PLAYER_SCHEMATICS, new RunnableVal3<Message, URI, String>() {
+        UtilityCommands.list(dir, actor, args, page, -1, formatName, Settings.IMP.PATHS.PER_PLAYER_SCHEMATICS, new RunnableVal3<Message, URI, String>() {
             @Override
             public void run(Message msg, URI uri, String relFilePath) {
                 boolean isDir = false;
diff --git a/core/src/main/java/com/sk89q/worldedit/command/UtilityCommands.java b/core/src/main/java/com/sk89q/worldedit/command/UtilityCommands.java
index 7772fdb3..caeca524 100644
--- a/core/src/main/java/com/sk89q/worldedit/command/UtilityCommands.java
+++ b/core/src/main/java/com/sk89q/worldedit/command/UtilityCommands.java
@@ -24,6 +24,7 @@ import com.boydti.fawe.FaweAPI;
 import com.boydti.fawe.command.FaweParser;
 import com.boydti.fawe.config.BBC;
 import com.boydti.fawe.config.Commands;
+import com.boydti.fawe.object.DelegateConsumer;
 import com.boydti.fawe.object.FaweLimit;
 import com.boydti.fawe.object.FawePlayer;
 import com.boydti.fawe.object.RunnableVal3;
@@ -74,8 +75,8 @@ import java.lang.reflect.Type;
 import java.net.URI;
 import java.util.*;
 import java.util.concurrent.*;
+import java.util.concurrent.atomic.AtomicInteger;
 import java.util.function.Consumer;
-import java.util.stream.Collectors;
 
 
 import static com.sk89q.minecraft.util.commands.Logging.LogMode.PLACEMENT;
@@ -619,7 +620,7 @@ public class UtilityCommands extends MethodCommands {
     }
 
     public static void list(File dir, Actor actor, CommandContext args, @Range(min = 0) int page, String formatName, boolean playerFolder, String onClickCmd) {
-        list(dir, actor, args, page, formatName, playerFolder, new RunnableVal3<Message, URI, String>() {
+        list(dir, actor, args, page, -1, formatName, playerFolder, new RunnableVal3<Message, URI, String>() {
             @Override
             public void run(Message m, URI uri, String fileName) {
                 m.text(BBC.SCHEMATIC_LIST_ELEM, fileName, "");
@@ -628,7 +629,75 @@ public class UtilityCommands extends MethodCommands {
         });
     }
 
-    public static void list(File dir, Actor actor, CommandContext args, @Range(min = 0) int page, String formatName, boolean playerFolder, RunnableVal3<Message, URI, String> eachMsg) {
+    public static void list(File dir, Actor actor, CommandContext args, @Range(min = 0) int page, int perPage, String formatName, boolean playerFolder, RunnableVal3<Message, URI, String> eachMsg) {
+        AtomicInteger pageInt = new AtomicInteger(page);
+        List<File> fileList = new ArrayList<>();
+        page = getFiles(dir, actor, args, page, perPage, formatName, playerFolder, file -> fileList.add(file));
+
+        if (fileList.isEmpty()) {
+            BBC.SCHEMATIC_NONE.send(actor);
+            return;
+        }
+
+        if (perPage == -1) perPage = actor instanceof Player ? 12 : 20; // More pages for console
+        int pageCount = (fileList.size() + perPage - 1) / perPage;
+        if (page < 1) {
+            BBC.SCHEMATIC_PAGE.send(actor, ">0");
+            return;
+        }
+        if (page > pageCount) {
+            BBC.SCHEMATIC_PAGE.send(actor, "<" + (pageCount + 1));
+            return;
+        }
+
+        final int sortType = args.hasFlag('d') ? -1 : args.hasFlag('n') ? 1 : 0;
+        // cleanup file list
+        Collections.sort(fileList, new Comparator<File>() {
+            @Override
+            public int compare(File f1, File f2) {
+                boolean dir1 = f1.isDirectory();
+                boolean dir2 = f2.isDirectory();
+                if (dir1 != dir2) return dir1 ? -1 : 1;
+                int res;
+                if (sortType == 0) { // use name by default
+                    int p = f1.getParent().compareTo(f2.getParent());
+                    if (p == 0) { // same parent, compare names
+                        res = f1.getName().compareTo(f2.getName());
+                    } else { // different parent, sort by that
+                        res = p;
+                    }
+                } else {
+                    res = Long.valueOf(f1.lastModified()).compareTo(f2.lastModified()); // use date if there is a flag
+                    if (sortType == 1) res = -res; // flip date for newest first instead of oldest first
+                }
+                return res;
+            }
+        });
+
+        int offset = (page - 1) * perPage;
+
+        int limit = Math.min(offset + perPage, fileList.size());
+
+        String fullArgs = (String) args.getLocals().get("arguments");
+        String baseCmd = null;
+        if (fullArgs != null) {
+            baseCmd = fullArgs.endsWith(" " + page) ? fullArgs.substring(0, fullArgs.length() - (" " + page).length()) : fullArgs;
+        }
+        Message m = new Message(BBC.SCHEMATIC_LIST, page, pageCount);
+
+        UUID uuid = playerFolder ? actor.getUniqueId() : null;
+        for (int i = offset; i < limit; i++) {
+            m.newline();
+            File file = fileList.get(i);
+            eachMsg.run(m, file.toURI(), getPath(dir, file, uuid));
+        }
+        if (baseCmd != null) {
+            m.newline().paginate(baseCmd, page, pageCount);
+        }
+        m.send(actor);
+    }
+
+    protected static int getFiles(File dir, Actor actor, CommandContext args, @Range(min = 0) int page, int perPage, String formatName, boolean playerFolder, Consumer<File> forEachFile) {
         int len = args.argsLength();
         List<String> filters = new ArrayList<>();
 
@@ -696,90 +765,49 @@ public class UtilityCommands extends MethodCommands {
             return true;
         };
 
-        List<File> fileList = new ArrayList<>();
+        if (formatName != null) {
+            final ClipboardFormat cf = ClipboardFormat.findByAlias(formatName);
+            forEachFile = new DelegateConsumer<File>(forEachFile) {
+                @Override
+                public void accept(File file) {
+                    if (cf.isFormat(file)) super.accept(file);
+                }
+            };
+        } else {
+            forEachFile = new DelegateConsumer<File>(forEachFile) {
+                @Override
+                public void accept(File file) {
+                    if (!file.toString().endsWith(".cached")) super.accept(file);
+                }
+            };
+        }
+
         if (playerFolder) {
             if (listMine) {
                 File playerDir = new File(dir, actor.getUniqueId() + dirFilter);
-                if (playerDir.exists()) fileList.addAll(allFiles(playerDir.listFiles(), false));
+                if (playerDir.exists()) allFiles(playerDir.listFiles(), false, forEachFile);
             }
             if (listGlobal) {
                 File rel = new File(dir, dirFilter);
-                if (rel.exists()) fileList.addAll(allFiles(rel.listFiles(ignoreUUIDs), false));
+                forEachFile = new DelegateConsumer<File>(forEachFile) {
+                    @Override
+                    public void accept(File f) {
+                        try {
+                            if (f.isDirectory()) {
+                                UUID uuid = UUID.fromString(f.getName());
+                                return;
+                            }
+                        } catch (IllegalArgumentException exception) {}
+                        super.accept(f);
+                    }
+                };
+                if (rel.exists()) allFiles(rel.listFiles(), false, forEachFile);
             }
         } else {
             File rel = new File(dir, dirFilter);
-            if (rel.exists()) fileList.addAll(allFiles(rel.listFiles(), false));
+            if (rel.exists()) allFiles(rel.listFiles(), false, forEachFile);
         }
-
-        if (fileList.isEmpty()) {
-            BBC.SCHEMATIC_NONE.send(actor);
-            return;
-        }
-        if (formatName != null) {
-            final ClipboardFormat cf = ClipboardFormat.findByAlias(formatName);
-            fileList = fileList.stream()
-                    .filter(file -> cf.isFormat(file))
-                    .collect(Collectors.toList());
-
-        }
-        fileList = filter(fileList, filters);
-
-        final int perPage = actor instanceof Player ? 12 : 20; // More pages for console
-        int pageCount = (fileList.size() + perPage - 1) / perPage;
-        if (page < 1) {
-            BBC.SCHEMATIC_PAGE.send(actor, ">0");
-            return;
-        }
-        if (page > pageCount) {
-            BBC.SCHEMATIC_PAGE.send(actor, "<" + (pageCount + 1));
-            return;
-        }
-
-        final int sortType = args.hasFlag('d') ? -1 : args.hasFlag('n') ? 1 : 0;
-        // cleanup file list
-        Collections.sort(fileList, new Comparator<File>() {
-            @Override
-            public int compare(File f1, File f2) {
-                boolean dir1 = f1.isDirectory();
-                boolean dir2 = f2.isDirectory();
-                if (dir1 != dir2) return dir1 ? -1 : 1;
-                int res;
-                if (sortType == 0) { // use name by default
-                    int p = f1.getParent().compareTo(f2.getParent());
-                    if (p == 0) { // same parent, compare names
-                        res = f1.getName().compareTo(f2.getName());
-                    } else { // different parent, sort by that
-                        res = p;
-                    }
-                } else {
-                    res = Long.valueOf(f1.lastModified()).compareTo(f2.lastModified()); // use date if there is a flag
-                    if (sortType == 1) res = -res; // flip date for newest first instead of oldest first
-                }
-                return res;
-            }
-        });
-
-        int offset = (page - 1) * perPage;
-
-        int limit = Math.min(offset + perPage, fileList.size());
-
-        String fullArgs = (String) args.getLocals().get("arguments");
-        String baseCmd = null;
-        if (fullArgs != null) {
-            baseCmd = fullArgs.endsWith(" " + page) ? fullArgs.substring(0, fullArgs.length() - (" " + page).length()) : fullArgs;
-        }
-        Message m = new Message(BBC.SCHEMATIC_LIST, page, pageCount);
-
-        UUID uuid = playerFolder ? actor.getUniqueId() : null;
-        for (int i = offset; i < limit; i++) {
-            m.newline();
-            File file = fileList.get(i);
-            eachMsg.run(m, file.toURI(), getPath(dir, file, uuid));
-        }
-        if (baseCmd != null) {
-            m.newline().paginate(baseCmd, page, pageCount);
-        }
-        m.send(actor);
+        return page;
     }
 
     private static List<File> filter(List<File> fileList, List<String> filters) {
@@ -822,23 +850,19 @@ public class UtilityCommands extends MethodCommands {
         return fileList;
     }
 
-    private static List<File> allFiles(File[] files, boolean recursive) {
-        if (files == null || files.length == 0) return Arrays.asList();
-        List<File> fileList = new ArrayList<File>();
+    private static void allFiles(File[] files, boolean recursive, Consumer<File> task) {
+        if (files == null || files.length == 0) return;
         for (File f : files) {
             if (f.isDirectory()) {
                 if (recursive) {
-                    List<File> subFiles = allFiles(f.listFiles(), recursive);
-                    if (subFiles == null || subFiles.isEmpty()) continue; // empty subdir
-                    fileList.addAll(subFiles);
+                    allFiles(f.listFiles(), recursive, task);
                 } else {
-                    fileList.add(f);
+                    task.accept(f);
                 }
             } else {
-                fileList.add(f);
+                task.accept(f);
             }
         }
-        return fileList;
     }
 
     private static String getPath(File root, File file, UUID uuid) {
diff --git a/core/src/main/java/com/sk89q/worldedit/extension/platform/PlatformManager.java b/core/src/main/java/com/sk89q/worldedit/extension/platform/PlatformManager.java
index 62e71e01..4d09df07 100644
--- a/core/src/main/java/com/sk89q/worldedit/extension/platform/PlatformManager.java
+++ b/core/src/main/java/com/sk89q/worldedit/extension/platform/PlatformManager.java
@@ -21,6 +21,7 @@ package com.sk89q.worldedit.extension.platform;
 
 import com.boydti.fawe.config.BBC;
 import com.boydti.fawe.object.FawePlayer;
+import com.boydti.fawe.object.brush.visualization.VirtualWorld;
 import com.boydti.fawe.object.exception.FaweException;
 import com.boydti.fawe.object.pattern.PatternTraverser;
 import com.boydti.fawe.util.MainUtil;
@@ -328,10 +329,6 @@ public class PlatformManager {
         return tool;
     }
 
-    public void handleMove() {
-
-    }
-
     @SuppressWarnings("deprecation")
     @Subscribe
     public void handleBlockInteract(BlockInteractEvent event) {
@@ -347,6 +344,13 @@ public class PlatformManager {
             if (actor instanceof Player) {
                 final LocalSession session = worldEdit.getSessionManager().get(actor);
                 Player playerActor = (Player) actor;
+
+                VirtualWorld virtual = session.getVirtualWorld();
+                if (virtual != null) {
+                    virtual.handleBlockInteract(playerActor, vector, event);
+                    if (event.isCancelled()) return;
+                }
+
                 if (event.getType() == Interaction.HIT) {
                     if (session.isToolControlEnabled() && playerActor.getItemInHand() == getConfiguration().wandItem) {
                         FawePlayer<?> fp = FawePlayer.wrap(playerActor);
@@ -394,6 +398,7 @@ public class PlatformManager {
                                 }
                             }, true, true);
                             event.setCancelled(true);
+                            return;
                         }
                     }
                 } else if (event.getType() == Interaction.OPEN) {
@@ -402,17 +407,18 @@ public class PlatformManager {
                         if (!actor.hasPermission("worldedit.selection.pos")) {
                             return;
                         }
-                        final RegionSelector selector = session.getRegionSelector(playerActor.getWorld());
-                        final Player player = new LocationMaskedPlayerWrapper(PlayerWrapper.wrap((Player) actor), ((Player) actor).getLocation());
-                        fp.runAction(new Runnable() {
-                            @Override
-                            public void run() {
-                                if (selector.selectSecondary(vector, ActorSelectorLimits.forActor(player))) {
-                                    selector.explainSecondarySelection(actor, session, vector);
+                        if (fp.checkAction()) {
+                            final RegionSelector selector = session.getRegionSelector(playerActor.getWorld());
+                            final Player player = new LocationMaskedPlayerWrapper(PlayerWrapper.wrap((Player) actor), ((Player) actor).getLocation());
+                            fp.runAction(new Runnable() {
+                                @Override
+                                public void run() {
+                                    if (selector.selectSecondary(vector, ActorSelectorLimits.forActor(player))) {
+                                        selector.explainSecondarySelection(actor, session, vector);
+                                    }
                                 }
-                            }
-                        }, true, true);
-
+                            }, true, true);
+                        }
                         event.setCancelled(true);
                         return;
                     }
@@ -421,18 +427,21 @@ public class PlatformManager {
                     if (tool != null && tool instanceof BlockTool) {
                         if (tool.canUse(playerActor)) {
                             FawePlayer<?> fp = FawePlayer.wrap(playerActor);
-                            final Player player = new LocationMaskedPlayerWrapper(PlayerWrapper.wrap((Player) actor), ((Player) actor).getLocation());
-                            fp.runAction(new Runnable() {
-                                @Override
-                                public void run() {
-                                    if (tool instanceof BrushTool) {
-                                        ((BlockTool) tool).actPrimary(queryCapability(Capability.WORLD_EDITING), getConfiguration(), player, session, location);
-                                    } else {
-                                        reset((BlockTool) tool).actPrimary(queryCapability(Capability.WORLD_EDITING), getConfiguration(), player, session, location);
+                            if (fp.checkAction()) {
+                                final Player player = new LocationMaskedPlayerWrapper(PlayerWrapper.wrap((Player) actor), ((Player) actor).getLocation());
+                                fp.runAction(new Runnable() {
+                                    @Override
+                                    public void run() {
+                                        if (tool instanceof BrushTool) {
+                                            ((BlockTool) tool).actPrimary(queryCapability(Capability.WORLD_EDITING), getConfiguration(), player, session, location);
+                                        } else {
+                                            reset((BlockTool) tool).actPrimary(queryCapability(Capability.WORLD_EDITING), getConfiguration(), player, session, location);
+                                        }
                                     }
-                                }
-                            }, true, true);
-                            event.setCancelled(true);
+                                }, true, true);
+                                event.setCancelled(true);
+                                return;
+                            }
                         }
                     }
                 }
@@ -460,6 +469,13 @@ public class PlatformManager {
         // making changes to the world
         Player actor = createProxyActor(event.getPlayer());
         final Player player = new LocationMaskedPlayerWrapper(PlayerWrapper.wrap(actor), actor.getLocation(), true);
+        final LocalSession session = worldEdit.getSessionManager().get(player);
+
+        VirtualWorld virtual = session.getVirtualWorld();
+        if (virtual != null) {
+            virtual.handlePlayerInput(player,  event);
+            if (event.isCancelled()) return;
+        }
 
         try {
             switch (event.getInputType()) {
@@ -484,8 +500,6 @@ public class PlatformManager {
                         return;
                     }
 
-                    final LocalSession session = worldEdit.getSessionManager().get(player);
-
                     final Tool tool = session.getTool(player);
                     if (tool != null && tool instanceof DoubleActionTraceTool) {
                         if (tool.canUse(player)) {
@@ -521,8 +535,6 @@ public class PlatformManager {
                         return;
                     }
 
-                    final LocalSession session = worldEdit.getSessionManager().get(player);
-
                     final Tool tool = session.getTool(player);
                     if (tool != null && tool instanceof TraceTool) {
                         if (tool.canUse(player)) {
diff --git a/core/src/main/java/com/sk89q/worldedit/extent/Extent.java b/core/src/main/java/com/sk89q/worldedit/extent/Extent.java
index 9e051795..0e2e3411 100644
--- a/core/src/main/java/com/sk89q/worldedit/extent/Extent.java
+++ b/core/src/main/java/com/sk89q/worldedit/extent/Extent.java
@@ -38,7 +38,7 @@ public interface Extent extends InputExtent, OutputExtent {
     default
     @Nullable
     Entity createEntity(Location location, BaseEntity entity) {
-        throw new UnsupportedOperationException(getClass() + " does not support entity creation!");
+        return null;
     }
 
     @Override
@@ -240,7 +240,7 @@ public interface Extent extends InputExtent, OutputExtent {
         }
     }
 
-    default boolean contain(Vector pt) {
+    default boolean contains(Vector pt) {
         Vector min = getMinimumPoint();
         Vector max = getMaximumPoint();
         return (pt.containedWithin(min, max));
diff --git a/core/src/main/java/com/sk89q/worldedit/extent/clipboard/BlockArrayClipboard.java b/core/src/main/java/com/sk89q/worldedit/extent/clipboard/BlockArrayClipboard.java
index 65414839..22f3c4f2 100644
--- a/core/src/main/java/com/sk89q/worldedit/extent/clipboard/BlockArrayClipboard.java
+++ b/core/src/main/java/com/sk89q/worldedit/extent/clipboard/BlockArrayClipboard.java
@@ -39,6 +39,7 @@ import com.sk89q.worldedit.regions.Region;
 import com.sk89q.worldedit.util.Location;
 import com.sk89q.worldedit.world.biome.BaseBiome;
 import com.sk89q.worldedit.world.registry.BundledBlockData;
+import java.io.Closeable;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
@@ -52,7 +53,7 @@ import static com.google.common.base.Preconditions.checkNotNull;
  * Stores block data as a multi-dimensional array of {@link BaseBlock}s and
  * other data as lists or maps.
  */
-public class BlockArrayClipboard implements Clipboard, LightingExtent {
+public class BlockArrayClipboard implements Clipboard, LightingExtent, Closeable {
 
     private Region region;
     public FaweClipboard IMP;
@@ -120,6 +121,7 @@ public class BlockArrayClipboard implements Clipboard, LightingExtent {
         close();
     }
 
+    @Override
     public void close() {
         IMP.close();
     }
diff --git a/core/src/main/java/com/sk89q/worldedit/extent/clipboard/io/ClipboardFormat.java b/core/src/main/java/com/sk89q/worldedit/extent/clipboard/io/ClipboardFormat.java
index fa3735ea..965c6fea 100644
--- a/core/src/main/java/com/sk89q/worldedit/extent/clipboard/io/ClipboardFormat.java
+++ b/core/src/main/java/com/sk89q/worldedit/extent/clipboard/io/ClipboardFormat.java
@@ -24,13 +24,7 @@ import com.boydti.fawe.config.Settings;
 import com.boydti.fawe.jnbt.NBTStreamer;
 import com.boydti.fawe.object.FaweOutputStream;
 import com.boydti.fawe.object.RunnableVal;
-import com.boydti.fawe.object.clipboard.AbstractClipboardFormat;
-import com.boydti.fawe.object.clipboard.DiskOptimizedClipboard;
-import com.boydti.fawe.object.clipboard.FaweClipboard;
-import com.boydti.fawe.object.clipboard.IClipboardFormat;
-import com.boydti.fawe.object.clipboard.LazyClipboardHolder;
-import com.boydti.fawe.object.clipboard.MultiClipboardHolder;
-import com.boydti.fawe.object.clipboard.URIClipboardHolder;
+import com.boydti.fawe.object.clipboard.*;
 import com.boydti.fawe.object.io.FastByteArrayOutputStream;
 import com.boydti.fawe.object.io.PGZIPOutputStream;
 import com.boydti.fawe.object.io.ResettableFileInputStream;
@@ -47,32 +41,22 @@ import com.sk89q.jnbt.NBTConstants;
 import com.sk89q.jnbt.NBTInputStream;
 import com.sk89q.jnbt.NBTOutputStream;
 import com.sk89q.worldedit.LocalConfiguration;
+import com.sk89q.worldedit.LocalSession;
 import com.sk89q.worldedit.Vector;
 import com.sk89q.worldedit.WorldEdit;
+import com.sk89q.worldedit.entity.Player;
 import com.sk89q.worldedit.extension.platform.Actor;
 import com.sk89q.worldedit.extent.clipboard.BlockArrayClipboard;
 import com.sk89q.worldedit.extent.clipboard.Clipboard;
+import com.sk89q.worldedit.session.ClipboardHolder;
 import com.sk89q.worldedit.world.registry.WorldData;
-import java.io.BufferedInputStream;
-import java.io.BufferedOutputStream;
-import java.io.DataInputStream;
-import java.io.File;
-import java.io.FileFilter;
-import java.io.FileInputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
+import java.io.*;
 import java.net.URI;
 import java.net.URISyntaxException;
 import java.net.URL;
 import java.nio.channels.Channels;
 import java.nio.channels.ReadableByteChannel;
-import java.util.ArrayList;
-import java.util.EnumSet;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
+import java.util.*;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.zip.GZIPInputStream;
 import java.util.zip.GZIPOutputStream;
@@ -481,6 +465,38 @@ public enum ClipboardFormat {
         return format.getWriter(outputStream);
     }
 
+    /**
+     * Set the player's clipboard
+     * @param player
+     * @param uri
+     * @param in
+     * @return the held clipboard
+     * @throws IOException
+     */
+    public ClipboardHolder hold(Player player, URI uri, InputStream in) throws IOException {
+        checkNotNull(player);
+        checkNotNull(uri);
+        checkNotNull(in);
+
+        final ClipboardReader reader = getReader(in);
+
+        final WorldData worldData = player.getWorld().getWorldData();
+        final Clipboard clipboard;
+
+        LocalSession session = WorldEdit.getInstance().getSessionManager().get(player);
+        session.setClipboard(null);
+        if (reader instanceof SchematicReader) {
+            clipboard = ((SchematicReader) reader).read(player.getWorld().getWorldData(), player.getUniqueId());
+        } else if (reader instanceof StructureFormat) {
+            clipboard = ((StructureFormat) reader).read(player.getWorld().getWorldData(), player.getUniqueId());
+        } else {
+            clipboard = reader.read(player.getWorld().getWorldData());
+        }
+        URIClipboardHolder holder = new URIClipboardHolder(uri, clipboard, worldData);
+        session.setClipboard(holder);
+        return holder;
+    }
+
     public Schematic load(File file) throws IOException {
         return load(new FileInputStream(file));
     }
diff --git a/forge112/src/main/java/com/boydti/fawe/forge/FaweForge.java b/forge112/src/main/java/com/boydti/fawe/forge/FaweForge.java
index 12c5f268..9e0ad81e 100644
--- a/forge112/src/main/java/com/boydti/fawe/forge/FaweForge.java
+++ b/forge112/src/main/java/com/boydti/fawe/forge/FaweForge.java
@@ -68,7 +68,7 @@ public class FaweForge implements IFawe {
 
     @Override
     public String getPlatformVersion() {
-        return FMLCommonHandler.instance().getMinecraftServerInstance().getMinecraftVersion();
+        return "1.12";
     }
 
     @Override