diff --git a/build.gradle b/build.gradle
index 9930870..581da97 100644
--- a/build.gradle
+++ b/build.gradle
@@ -22,7 +22,7 @@ idea {
 }
 
 group "net.trivernis"
-version "0.10-beta"
+version "0.11-beta"
 
 sourceCompatibility = 1.8
 
@@ -31,9 +31,6 @@ repositories {
     maven {
         url "https://hub.spigotmc.org/nexus/content/repositories/snapshots"
     }
-    maven {
-        url 'https://papermc.io/repo/repository/maven-public/'
-    }
     maven {
         url 'https://mvnrepository.com/artifact/org.xerial/sqlite-jdbc'
     }
@@ -41,6 +38,10 @@ repositories {
         name 'papermc'
         url 'https://papermc.io/repo/repository/maven-public/'
     }
+    maven {
+        name 'CodeMc'
+        url 'https://repo.codemc.org/repository/maven-public'
+    }
 }
 
 dependencies {
@@ -50,11 +51,15 @@ dependencies {
     compileOnly "org.spigotmc:spigot-api:1.14.4-R0.1-SNAPSHOT"
     compile group: 'org.xerial', name: 'sqlite-jdbc', version: '3.28.0'
     compile "io.papermc:paperlib:1.0.2"
+    compile "org.bstats:bstats-bukkit:1.5"
 }
 
 apply plugin: "com.github.johnrengelman.shadow"
+apply plugin: 'java'
+
 shadowJar {
     relocate 'io.papermc.lib', 'net.trivernis.chunkmaster.paperlib'
+    relocate 'org.bstats', 'net.trivernis.chunkmaster.bstats'
 }
 
 jar {
diff --git a/src/main/kotlin/net/trivernis/chunkmaster/Chunkmaster.kt b/src/main/kotlin/net/trivernis/chunkmaster/Chunkmaster.kt
index 117bb10..6d5ab8b 100644
--- a/src/main/kotlin/net/trivernis/chunkmaster/Chunkmaster.kt
+++ b/src/main/kotlin/net/trivernis/chunkmaster/Chunkmaster.kt
@@ -4,6 +4,7 @@ import io.papermc.lib.PaperLib
 import net.trivernis.chunkmaster.commands.*
 import net.trivernis.chunkmaster.lib.generation.GenerationManager
 import net.trivernis.chunkmaster.lib.SqlUpdateManager
+import org.bstats.bukkit.Metrics
 import org.bukkit.plugin.java.JavaPlugin
 import org.bukkit.scheduler.BukkitTask
 import java.lang.Exception
@@ -24,6 +25,9 @@ class Chunkmaster: JavaPlugin() {
     override fun onEnable() {
         PaperLib.suggestPaper(this)
         configure()
+
+        val metrics = Metrics(this)
+
         initDatabase()
         generationManager = GenerationManager(this, server)
         generationManager.init()
diff --git a/src/main/kotlin/net/trivernis/chunkmaster/ChunkmasterEvents.kt b/src/main/kotlin/net/trivernis/chunkmaster/ChunkmasterEvents.kt
index b93c651..60328f5 100644
--- a/src/main/kotlin/net/trivernis/chunkmaster/ChunkmasterEvents.kt
+++ b/src/main/kotlin/net/trivernis/chunkmaster/ChunkmasterEvents.kt
@@ -9,6 +9,7 @@ import org.bukkit.event.player.PlayerQuitEvent
 class ChunkmasterEvents(private val chunkmaster: Chunkmaster, private val server: Server) : Listener {
 
     private val pauseOnJoin = chunkmaster.config.getBoolean("generation.pause-on-join")
+    private var playerPaused = false
 
     /**
      * Autostart generation tasks
@@ -19,9 +20,14 @@ class ChunkmasterEvents(private val chunkmaster: Chunkmaster, private val server
             if (server.onlinePlayers.size == 1 && server.onlinePlayers.contains(event.player) ||
                 server.onlinePlayers.isEmpty()
             ) {
-                if (!chunkmaster.generationManager.paused) {
-                    chunkmaster.generationManager.startAll()
-                    chunkmaster.logger.info("Server is empty. Starting chunk generation tasks.")
+                if (!playerPaused) {
+                    chunkmaster.generationManager.resumeAll()
+                    chunkmaster.logger.info("Server is empty. Resuming chunk generation tasks.")
+                } else if (chunkmaster.generationManager.paused){
+                    chunkmaster.logger.info("Generation was manually paused. Not resuming automatically.")
+                    playerPaused = chunkmaster.generationManager.paused
+                } else {
+                    chunkmaster.logger.info("Generation tasks are already running.")
                 }
             }
         }
@@ -34,8 +40,9 @@ class ChunkmasterEvents(private val chunkmaster: Chunkmaster, private val server
     fun onPlayerJoin(event: PlayerJoinEvent) {
         if (pauseOnJoin) {
             if (server.onlinePlayers.size == 1 || server.onlinePlayers.isEmpty()) {
-                chunkmaster.generationManager.stopAll()
-                chunkmaster.logger.info("Stopping generation tasks because of player join.")
+                playerPaused = chunkmaster.generationManager.paused
+                chunkmaster.generationManager.pauseAll()
+                chunkmaster.logger.info("Pausing generation tasks because of player join.")
             }
         }
     }
diff --git a/src/main/kotlin/net/trivernis/chunkmaster/commands/CmdCancel.kt b/src/main/kotlin/net/trivernis/chunkmaster/commands/CmdCancel.kt
index 80daf60..052ee60 100644
--- a/src/main/kotlin/net/trivernis/chunkmaster/commands/CmdCancel.kt
+++ b/src/main/kotlin/net/trivernis/chunkmaster/commands/CmdCancel.kt
@@ -4,11 +4,31 @@ import net.md_5.bungee.api.ChatColor
 import net.md_5.bungee.api.chat.ComponentBuilder
 import net.trivernis.chunkmaster.Chunkmaster
 import net.trivernis.chunkmaster.lib.Subcommand
+import net.trivernis.chunkmaster.lib.generation.TaskEntry
+import org.bukkit.command.Command
 import org.bukkit.command.CommandSender
 
 class CmdCancel(private val chunkmaster: Chunkmaster): Subcommand {
     override val name = "cancel"
 
+    /**
+     * TabComplete for subcommand cancel.
+     */
+    override fun onTabComplete(
+        sender: CommandSender,
+        command: Command,
+        alias: String,
+        args: List<String>
+    ): MutableList<String> {
+        val genManager = chunkmaster.generationManager
+        val allTasks = genManager.allTasks
+        return allTasks.filter {it.id.toString().indexOf(args[0]) == 0}
+            .map { it.id.toString() }.toMutableList()
+    }
+
+    /**
+     * Cancels the generation task if it exists.
+     */
     override fun execute(sender: CommandSender, args: List<String>): Boolean {
         return if (args.isNotEmpty() && args[0].toIntOrNull() != null) {
             if (chunkmaster.generationManager.removeTask(args[0].toInt())) {
diff --git a/src/main/kotlin/net/trivernis/chunkmaster/commands/CmdGenerate.kt b/src/main/kotlin/net/trivernis/chunkmaster/commands/CmdGenerate.kt
index 4ef2a15..b9a5431 100644
--- a/src/main/kotlin/net/trivernis/chunkmaster/commands/CmdGenerate.kt
+++ b/src/main/kotlin/net/trivernis/chunkmaster/commands/CmdGenerate.kt
@@ -4,12 +4,32 @@ import net.md_5.bungee.api.ChatColor
 import net.md_5.bungee.api.chat.ComponentBuilder
 import net.trivernis.chunkmaster.Chunkmaster
 import net.trivernis.chunkmaster.lib.Subcommand
+import org.bukkit.command.Command
 import org.bukkit.command.CommandSender
 import org.bukkit.entity.Player
 
 class CmdGenerate(private val chunkmaster: Chunkmaster): Subcommand {
     override val name = "generate"
 
+    /**
+     * TabComplete for generate command.
+     */
+    override fun onTabComplete(
+        sender: CommandSender,
+        command: Command,
+        alias: String,
+        args: List<String>
+    ): MutableList<String> {
+        if (args.size == 1) {
+            return sender.server.worlds.filter { it.name.indexOf(args[0]) == 0 }
+                .map {it.name}.toMutableList()
+        }
+        return emptyList<String>().toMutableList()
+    }
+
+    /**
+     * Creates a new generation task for the world and chunk count.
+     */
     override fun execute(sender: CommandSender, args: List<String>): Boolean {
         var worldName = ""
         var stopAfter = -1
@@ -39,17 +59,21 @@ class CmdGenerate(private val chunkmaster: Chunkmaster): Subcommand {
             }
         }
         val world = chunkmaster.server.getWorld(worldName)
-        return if (world != null) {
+        val allTasks = chunkmaster.generationManager.allTasks
+        return if (world != null && (allTasks.find { it.generationTask.world == world }) == null) {
             chunkmaster.generationManager.addTask(world, stopAfter)
             sender.spigot().sendMessage(*ComponentBuilder("Generation task for world ").color(ChatColor.BLUE)
                 .append(worldName).color(ChatColor.GREEN).append(" until ").color(ChatColor.BLUE)
                 .append(if (stopAfter > 0) "$stopAfter chunks" else "WorldBorder").color(ChatColor.GREEN)
                 .append(" successfully created").color(ChatColor.BLUE).create())
             true
-        } else {
+        } else if (world == null){
             sender.spigot().sendMessage(*ComponentBuilder("World ").color(ChatColor.RED)
                 .append(worldName).color(ChatColor.GREEN).append(" not found!").color(ChatColor.RED).create())
             false
+        } else {
+            sender.spigot().sendMessage(*ComponentBuilder("Task already exists!").color(ChatColor.RED).create())
+            return false
         }
     }
 }
\ No newline at end of file
diff --git a/src/main/kotlin/net/trivernis/chunkmaster/commands/CmdList.kt b/src/main/kotlin/net/trivernis/chunkmaster/commands/CmdList.kt
index 3e5cca8..00703b7 100644
--- a/src/main/kotlin/net/trivernis/chunkmaster/commands/CmdList.kt
+++ b/src/main/kotlin/net/trivernis/chunkmaster/commands/CmdList.kt
@@ -4,21 +4,57 @@ import net.md_5.bungee.api.ChatColor
 import net.md_5.bungee.api.chat.ComponentBuilder
 import net.trivernis.chunkmaster.Chunkmaster
 import net.trivernis.chunkmaster.lib.Subcommand
+import org.bukkit.command.Command
 import org.bukkit.command.CommandSender
 
 class CmdList(private val chunkmaster: Chunkmaster): Subcommand {
     override val name = "list"
 
+    override fun onTabComplete(
+        sender: CommandSender,
+        command: Command,
+        alias: String,
+        args: List<String>
+    ): MutableList<String> {
+        return emptyList<String>().toMutableList()
+    }
+
+    /**
+     * Lists all running or paused generation tasks.
+     */
     override fun execute(sender: CommandSender, args: List<String>): Boolean {
         val runningTasks = chunkmaster.generationManager.tasks
-        if (runningTasks.isEmpty()) {
-            sender.spigot().sendMessage(*ComponentBuilder("There are no running generation tasks.")
+        val pausedTasks = chunkmaster.generationManager.pausedTasks
+
+        if (runningTasks.isEmpty() && pausedTasks.isEmpty()) {
+            sender.spigot().sendMessage(*ComponentBuilder("There are no generation tasks.")
                 .color(ChatColor.BLUE).create())
+        } else if (runningTasks.isEmpty()) {
+            val response = ComponentBuilder("Currently paused generation tasks:").color(ChatColor.WHITE).bold(true)
+            for (taskEntry in pausedTasks) {
+                val genTask = taskEntry.generationTask
+                response.append("\n - ").color(ChatColor.WHITE).bold(false)
+                response.append("#${taskEntry.id}").color(ChatColor.BLUE).append(" - ").color(ChatColor.WHITE)
+                response.append(genTask.world.name).color(ChatColor.GREEN).append(" - Progress: ").color(ChatColor.WHITE)
+                response.append("${genTask.count} chunks").color(ChatColor.BLUE)
+
+                if (genTask.stopAfter > 0) {
+                    response.append(" (${(genTask.count.toDouble()/genTask.stopAfter.toDouble())*100}%).")
+                }
+            }
+            sender.spigot().sendMessage(*response.create())
         } else {
-            val response = ComponentBuilder("Currently running generation tasks:").color(ChatColor.WHITE)
+            val response = ComponentBuilder("Currently running generation tasks:").color(ChatColor.WHITE).bold(true)
             for (task in runningTasks) {
-                response.append("\n - #${task.id}: ${task.generationTask.world.name}, Progress ${task.generationTask.count}")
-                    .color(ChatColor.BLUE)
+                val genTask = task.generationTask
+                response.append("\n - ").color(ChatColor.WHITE).bold(false)
+                    .append("#${task.id}").color(ChatColor.BLUE).append(" - ").color(ChatColor.WHITE)
+                    .append(genTask.world.name).color(ChatColor.GREEN).append(" - Progress: ").color(ChatColor.WHITE)
+                    .append("${genTask.count} chunks").color(ChatColor.BLUE)
+
+                if (genTask.stopAfter > 0) {
+                    response.append(" (${(genTask.count.toDouble()/genTask.stopAfter.toDouble())*100}%).")
+                }
             }
             sender.spigot().sendMessage(*response.create())
         }
diff --git a/src/main/kotlin/net/trivernis/chunkmaster/commands/CmdPause.kt b/src/main/kotlin/net/trivernis/chunkmaster/commands/CmdPause.kt
index b125f68..20c8fb8 100644
--- a/src/main/kotlin/net/trivernis/chunkmaster/commands/CmdPause.kt
+++ b/src/main/kotlin/net/trivernis/chunkmaster/commands/CmdPause.kt
@@ -4,11 +4,21 @@ import net.md_5.bungee.api.ChatColor
 import net.md_5.bungee.api.chat.ComponentBuilder
 import net.trivernis.chunkmaster.Chunkmaster
 import net.trivernis.chunkmaster.lib.Subcommand
+import org.bukkit.command.Command
 import org.bukkit.command.CommandSender
 
 class CmdPause(private val chunkmaster: Chunkmaster) : Subcommand {
     override val name: String = "pause"
 
+    override fun onTabComplete(
+        sender: CommandSender,
+        command: Command,
+        alias: String,
+        args: List<String>
+    ): MutableList<String> {
+        return emptyList<String>().toMutableList()
+    }
+
     override fun execute(sender: CommandSender, args: List<String>): Boolean {
         return if (!chunkmaster.generationManager.paused) {
             chunkmaster.generationManager.pauseAll()
diff --git a/src/main/kotlin/net/trivernis/chunkmaster/commands/CmdResume.kt b/src/main/kotlin/net/trivernis/chunkmaster/commands/CmdResume.kt
index 72b3068..df05ea6 100644
--- a/src/main/kotlin/net/trivernis/chunkmaster/commands/CmdResume.kt
+++ b/src/main/kotlin/net/trivernis/chunkmaster/commands/CmdResume.kt
@@ -4,11 +4,21 @@ import net.md_5.bungee.api.ChatColor
 import net.md_5.bungee.api.chat.ComponentBuilder
 import net.trivernis.chunkmaster.Chunkmaster
 import net.trivernis.chunkmaster.lib.Subcommand
+import org.bukkit.command.Command
 import org.bukkit.command.CommandSender
 
 class CmdResume(private val chunkmaster: Chunkmaster): Subcommand {
     override val name = "resume"
 
+    override fun onTabComplete(
+        sender: CommandSender,
+        command: Command,
+        alias: String,
+        args: List<String>
+    ): MutableList<String> {
+        return emptyList<String>().toMutableList()
+    }
+
     override fun execute(sender: CommandSender, args: List<String>): Boolean {
         return if (chunkmaster.generationManager.paused) {
             chunkmaster.generationManager.resumeAll()
diff --git a/src/main/kotlin/net/trivernis/chunkmaster/commands/CommandChunkmaster.kt b/src/main/kotlin/net/trivernis/chunkmaster/commands/CommandChunkmaster.kt
index c59f0ac..ef313a8 100644
--- a/src/main/kotlin/net/trivernis/chunkmaster/commands/CommandChunkmaster.kt
+++ b/src/main/kotlin/net/trivernis/chunkmaster/commands/CommandChunkmaster.kt
@@ -23,7 +23,16 @@ class CommandChunkmaster(private val chunkmaster: Chunkmaster, private val serve
      */
     override fun onTabComplete(sender: CommandSender, command: Command, alias: String, args: Array<out String>):
             MutableList<String> {
-        return commands.keys.filter { it.indexOf(args[0]) == 0 }.toMutableList()
+        if (args.size == 1) {
+            return commands.keys.filter { it.indexOf(args[0]) == 0 }.toMutableList()
+        } else if (args.isNotEmpty()){
+
+            if (commands.containsKey(args[0])) {
+                val commandEntry = commands[args[0]]
+                return commandEntry!!.onTabComplete(sender, command, alias, args.slice(1 until args.size))
+            }
+        }
+        return emptyList<String>().toMutableList()
     }
 
     /**
diff --git a/src/main/kotlin/net/trivernis/chunkmaster/lib/Subcommand.kt b/src/main/kotlin/net/trivernis/chunkmaster/lib/Subcommand.kt
index 65cb06f..7341e30 100644
--- a/src/main/kotlin/net/trivernis/chunkmaster/lib/Subcommand.kt
+++ b/src/main/kotlin/net/trivernis/chunkmaster/lib/Subcommand.kt
@@ -1,8 +1,10 @@
 package net.trivernis.chunkmaster.lib
 
+import org.bukkit.command.Command
 import org.bukkit.command.CommandSender
 
 interface Subcommand {
     val name: String
     fun execute(sender: CommandSender, args: List<String>): Boolean
+    fun onTabComplete(sender: CommandSender, command: Command, alias: String, args: List<String>): MutableList<String>
 }
\ No newline at end of file
diff --git a/src/main/kotlin/net/trivernis/chunkmaster/lib/generation/GenerationManager.kt b/src/main/kotlin/net/trivernis/chunkmaster/lib/generation/GenerationManager.kt
index a4c615c..a7d01d4 100644
--- a/src/main/kotlin/net/trivernis/chunkmaster/lib/generation/GenerationManager.kt
+++ b/src/main/kotlin/net/trivernis/chunkmaster/lib/generation/GenerationManager.kt
@@ -10,7 +10,15 @@ import java.lang.NullPointerException
 
 class GenerationManager(private val chunkmaster: Chunkmaster, private val server: Server) {
 
-    val tasks: HashSet<TaskEntry> = HashSet()
+    val tasks: HashSet<RunningTaskEntry> = HashSet()
+    val pausedTasks: HashSet<PausedTaskEntry> = HashSet()
+    val allTasks: HashSet<TaskEntry>
+        get() {
+            val all = HashSet<TaskEntry>()
+            all.addAll(pausedTasks)
+            all.addAll(tasks)
+            return all
+        }
     var paused = false
         private set
 
@@ -18,39 +26,51 @@ class GenerationManager(private val chunkmaster: Chunkmaster, private val server
      * Adds a generation task
      */
     fun addTask(world: World, stopAfter: Int = -1): Int {
-        val centerChunk = world.getChunkAt(world.spawnLocation)
-        val generationTask = createGenerationTask(world, centerChunk, centerChunk, stopAfter)
+        val foundTask = allTasks.find { it.generationTask.world == world }
+        if (foundTask == null) {
+            val centerChunk = world.getChunkAt(world.spawnLocation)
+            val generationTask = createGenerationTask(world, centerChunk, centerChunk, stopAfter)
 
-        val insertStatement = chunkmaster.sqliteConnection.prepareStatement("""
+            val insertStatement = chunkmaster.sqliteConnection.prepareStatement("""
             INSERT INTO generation_tasks (center_x, center_z, last_x, last_z, world, stop_after)
             values (?, ?, ?, ?, ?, ?)
             """)
-        insertStatement.setInt(1, centerChunk.x)
-        insertStatement.setInt(2, centerChunk.z)
-        insertStatement.setInt(3, centerChunk.x)
-        insertStatement.setInt(4, centerChunk.z)
-        insertStatement.setString(5, world.name)
-        insertStatement.setInt(6, stopAfter)
-        insertStatement.execute()
-
-        val getIdStatement = chunkmaster.sqliteConnection.prepareStatement("""
+            insertStatement.setInt(1, centerChunk.x)
+            insertStatement.setInt(2, centerChunk.z)
+            insertStatement.setInt(3, centerChunk.x)
+            insertStatement.setInt(4, centerChunk.z)
+            insertStatement.setString(5, world.name)
+            insertStatement.setInt(6, stopAfter)
+            insertStatement.execute()
+
+            val getIdStatement = chunkmaster.sqliteConnection.prepareStatement("""
             SELECT id FROM generation_tasks ORDER BY id DESC LIMIT 1
         """.trimIndent())
-        getIdStatement.execute()
-        val result = getIdStatement.resultSet
-        result.next()
-        val id: Int = result.getInt("id")
+            getIdStatement.execute()
+            val result = getIdStatement.resultSet
+            result.next()
+            val id: Int = result.getInt("id")
 
-        insertStatement.close()
-        getIdStatement.close()
+            insertStatement.close()
+            getIdStatement.close()
 
-        if (!paused) {
-            val task = server.scheduler.runTaskTimer(chunkmaster, generationTask, 10,
-                chunkmaster.config.getLong("generation.period"))
-            tasks.add(TaskEntry(id, task, generationTask))
-        }
+            generationTask.onEndReached {
+                server.consoleSender.sendMessage("Task #${id} finished after ${generationTask.count} chunks.")
+                removeTask(id)
+            }
+
+            if (!paused) {
+                val task = server.scheduler.runTaskTimer(chunkmaster, generationTask, 10,
+                    chunkmaster.config.getLong("generation.period"))
+                tasks.add(RunningTaskEntry(id, task, generationTask))
+            } else {
+                pausedTasks.add(PausedTaskEntry(id, generationTask))
+            }
 
-        return id
+            return id
+        } else {
+            return foundTask.id
+        }
     }
 
     /**
@@ -62,7 +82,11 @@ class GenerationManager(private val chunkmaster: Chunkmaster, private val server
             val generationTask = createGenerationTask(world, center, last, stopAfter)
             val task = server.scheduler.runTaskTimer(chunkmaster, generationTask, 10,
                 chunkmaster.config.getLong("generation.period"))
-            tasks.add(TaskEntry(id, task, generationTask))
+            tasks.add(RunningTaskEntry(id, task, generationTask))
+            generationTask.onEndReached {
+                server.consoleSender.sendMessage("Task #${id} finished after ${generationTask.count} chunks.")
+                removeTask(id)
+            }
         }
     }
 
@@ -70,18 +94,26 @@ class GenerationManager(private val chunkmaster: Chunkmaster, private val server
      * Stops a running generation task.
      */
     fun removeTask(id: Int): Boolean {
-        val taskEntry = this.tasks.find {it.id == id}
+        val taskEntry: TaskEntry? = if (this.paused) {
+            this.pausedTasks.find {it.id == id}
+        } else {
+            this.tasks.find {it.id == id}
+        }
         if (taskEntry != null) {
-            taskEntry.generationTask.cancel()
-            taskEntry.task.cancel()
+            taskEntry.cancel()
             val deleteTask = chunkmaster.sqliteConnection.prepareStatement("""
                 DELETE FROM generation_tasks WHERE id = ?;
             """.trimIndent())
             deleteTask.setInt(1, taskEntry.id)
             deleteTask.execute()
             deleteTask.close()
-            if (taskEntry.task.isCancelled) {
-                tasks.remove(taskEntry)
+
+            if (taskEntry is RunningTaskEntry) {
+                if (taskEntry.task.isCancelled) {
+                    tasks.remove(taskEntry)
+                }
+            } else if (taskEntry is PausedTaskEntry) {
+                pausedTasks.remove(taskEntry)
             }
             return true
         }
@@ -109,7 +141,7 @@ class GenerationManager(private val chunkmaster: Chunkmaster, private val server
      */
     fun stopAll() {
         saveProgress()
-        val removalSet = HashSet<TaskEntry>()
+        val removalSet = HashSet<RunningTaskEntry>()
         for (task in tasks) {
             task.generationTask.cancel()
             task.task.cancel()
@@ -154,6 +186,9 @@ class GenerationManager(private val chunkmaster: Chunkmaster, private val server
      */
     fun pauseAll() {
         paused = true
+        for (task in tasks) {
+            pausedTasks.add(PausedTaskEntry(task.id, task.generationTask))
+        }
         stopAll()
     }
 
@@ -162,6 +197,7 @@ class GenerationManager(private val chunkmaster: Chunkmaster, private val server
      */
     fun resumeAll() {
         paused = false
+        pausedTasks.clear()
         startAll()
     }
 
@@ -174,7 +210,8 @@ class GenerationManager(private val chunkmaster: Chunkmaster, private val server
                 val genTask = task.generationTask
                 server.consoleSender.sendMessage("""Task #${task.id} running for "${genTask.world.name}".
                     |Progress ${task.generationTask.count} chunks
-                    |${if (task.generationTask.stopAfter > 0)"(${(task.generationTask.count.toDouble()/task.generationTask.stopAfter.toDouble())*100}%)" else ""}.
+                    |${if (task.generationTask.stopAfter > 0)"(${(task.generationTask.count.toDouble()/
+                        task.generationTask.stopAfter.toDouble())*100}%)" else ""}.
                     |Last Chunk: ${genTask.lastChunk.x}, ${genTask.lastChunk.z}""".trimMargin("|").replace('\n', ' '))
                 val updateStatement = chunkmaster.sqliteConnection.prepareStatement("""
                     UPDATE generation_tasks SET last_x = ?, last_z = ?
@@ -185,11 +222,6 @@ class GenerationManager(private val chunkmaster: Chunkmaster, private val server
                 updateStatement.setInt(3, task.id)
                 updateStatement.execute()
                 updateStatement.close()
-
-                if (genTask.endReached) {   // remove the task if it is finished after the progress has been saved
-                    server.consoleSender.sendMessage("Task #${task.id} finished after ${genTask.count} chunks.")
-                    removeTask(task.id)
-                }
             } catch (error: Exception) {
                 server.consoleSender.sendMessage("Exception when saving task progress ${error.message}")
             }
diff --git a/src/main/kotlin/net/trivernis/chunkmaster/lib/generation/GenerationTask.kt b/src/main/kotlin/net/trivernis/chunkmaster/lib/generation/GenerationTask.kt
index e8c1233..91f8575 100644
--- a/src/main/kotlin/net/trivernis/chunkmaster/lib/generation/GenerationTask.kt
+++ b/src/main/kotlin/net/trivernis/chunkmaster/lib/generation/GenerationTask.kt
@@ -23,6 +23,9 @@ abstract class GenerationTask(plugin: Chunkmaster, centerChunk: Chunk, startChun
     protected val msptThreshold = plugin.config.getLong("generation.mspt-pause-threshold")
     protected val maxLoadedChunks = plugin.config.getInt("generation.max-loaded-chunks")
 
+    protected var endReachedCallback: (() -> Unit)? = null
+        private set
+
     abstract override fun run()
     abstract fun cancel()
 
@@ -48,4 +51,11 @@ abstract class GenerationTask(plugin: Chunkmaster, centerChunk: Chunk, startChun
     protected fun borderReached(): Boolean {
         return !world.worldBorder.isInside(lastChunkCoords.getCenterLocation(world)) || (stopAfter in 1..count)
     }
+
+    /**
+     * Registers end reached callback
+     */
+    fun onEndReached(cb: () -> Unit) {
+        endReachedCallback = cb
+    }
 }
\ No newline at end of file
diff --git a/src/main/kotlin/net/trivernis/chunkmaster/lib/generation/GenerationTaskPaper.kt b/src/main/kotlin/net/trivernis/chunkmaster/lib/generation/GenerationTaskPaper.kt
index 756d085..2a49321 100644
--- a/src/main/kotlin/net/trivernis/chunkmaster/lib/generation/GenerationTaskPaper.kt
+++ b/src/main/kotlin/net/trivernis/chunkmaster/lib/generation/GenerationTaskPaper.kt
@@ -38,6 +38,7 @@ class GenerationTaskPaper(
             } else if (pendingChunks.size < maxPendingChunks) {   // if more than 10 chunks are pending, wait.
                 if (borderReached()) {
                     endReached = true
+                    endReachedCallback?.invoke()
                     return
                 }
 
@@ -73,6 +74,9 @@ class GenerationTaskPaper(
             }
         }
         pendingChunks.clear()
+        if (loadedChunks.isNotEmpty()) {
+            lastChunkCoords = ChunkCoordinates(loadedChunks.last().x, loadedChunks.last().z)
+        }
         for (chunk in loadedChunks) {
             if (chunk.isLoaded) {
                 chunk.unload(true)
diff --git a/src/main/kotlin/net/trivernis/chunkmaster/lib/generation/GenerationTaskSpigot.kt b/src/main/kotlin/net/trivernis/chunkmaster/lib/generation/GenerationTaskSpigot.kt
index f54f666..ea71d4d 100644
--- a/src/main/kotlin/net/trivernis/chunkmaster/lib/generation/GenerationTaskSpigot.kt
+++ b/src/main/kotlin/net/trivernis/chunkmaster/lib/generation/GenerationTaskSpigot.kt
@@ -33,6 +33,7 @@ class GenerationTaskSpigot(
             } else {
                 if (borderReached()) {
                     endReached = true
+                    endReachedCallback?.invoke()
                     return
                 }
 
diff --git a/src/main/kotlin/net/trivernis/chunkmaster/lib/generation/PausedTaskEntry.kt b/src/main/kotlin/net/trivernis/chunkmaster/lib/generation/PausedTaskEntry.kt
new file mode 100644
index 0000000..90b7736
--- /dev/null
+++ b/src/main/kotlin/net/trivernis/chunkmaster/lib/generation/PausedTaskEntry.kt
@@ -0,0 +1,10 @@
+package net.trivernis.chunkmaster.lib.generation
+
+class PausedTaskEntry(
+    override val id: Int,
+    override val generationTask: GenerationTask
+) : TaskEntry {
+    override fun cancel() {
+        generationTask.cancel()
+    }
+}
\ No newline at end of file
diff --git a/src/main/kotlin/net/trivernis/chunkmaster/lib/generation/RunningTaskEntry.kt b/src/main/kotlin/net/trivernis/chunkmaster/lib/generation/RunningTaskEntry.kt
new file mode 100644
index 0000000..a53d89a
--- /dev/null
+++ b/src/main/kotlin/net/trivernis/chunkmaster/lib/generation/RunningTaskEntry.kt
@@ -0,0 +1,14 @@
+package net.trivernis.chunkmaster.lib.generation
+
+import org.bukkit.scheduler.BukkitTask
+
+class RunningTaskEntry(
+    override val id: Int,
+    val task: BukkitTask,
+    override val generationTask: GenerationTask
+) : TaskEntry {
+    override fun cancel() {
+        task.cancel()
+        generationTask.cancel()
+    }
+}
\ No newline at end of file
diff --git a/src/main/kotlin/net/trivernis/chunkmaster/lib/generation/TaskEntry.kt b/src/main/kotlin/net/trivernis/chunkmaster/lib/generation/TaskEntry.kt
index 552461b..cf6b135 100644
--- a/src/main/kotlin/net/trivernis/chunkmaster/lib/generation/TaskEntry.kt
+++ b/src/main/kotlin/net/trivernis/chunkmaster/lib/generation/TaskEntry.kt
@@ -2,4 +2,12 @@ package net.trivernis.chunkmaster.lib.generation
 
 import org.bukkit.scheduler.BukkitTask
 
-data class TaskEntry(val id: Int, val task: BukkitTask, val generationTask: GenerationTask)
\ No newline at end of file
+/**
+ * Generic task entry
+ */
+interface TaskEntry {
+    val id: Int
+    val generationTask: GenerationTask
+
+    fun cancel()
+}
\ No newline at end of file
diff --git a/src/main/resources/plugin.yml b/src/main/resources/plugin.yml
index 096b64a..350e596 100644
--- a/src/main/resources/plugin.yml
+++ b/src/main/resources/plugin.yml
@@ -1,6 +1,6 @@
 main: net.trivernis.chunkmaster.Chunkmaster
 name: Chunkmaster
-version: '0.10-beta'
+version: '0.11-beta'
 description: Chunk commands plugin.
 author: Trivernis
 website: trivernis.net