With WorldProtect, you can; Protect worlds from griefers Per world PvP Create limits in your limitless worlds Limit the number of players in a world Show a text file when players enter a world Stops explosions from happening in a world Unbreakable blocks Banned Items Per world gamemode with inventory saving So if you only want to use the borders feature, you should follow the steps in the spoiler. Spoiler: Configure WorldProtect Install WorldProtect and drop it in your plugins folder. Start the server and once the plugin's loaded, stop it. Go to plugins/WorldProtect folder and find config.yml. Edit config.yml so only borders:true and everything else is false. Save the file and start the server again. The border commands are like this: Spoiler: border commands /wp {other_world} border 100 Creates a border 100 blocks up, 100 north, 100 block south, 100 blocks east, 100 blocks west of the spawn point in world {other_world} /wp border 20 100 50 25 Creates a border in your current world (or the default world), that has its north limit at x=20, western limit at z=100, southern limit at x=50 and eastern limit at y=25 /wp border none Removes any borders from the current (or default) world. /wp border Shows what are the current borders. You can also do /wp help to see the command usage! I hope this helps. Source: Old PocketMine forums, WorldProtect info page.