How To Install WorldEdit On A Minecraft Server
Installing WorldEdit on your Server
Download WorlEdit for Bukkit / Spigot.
Download WorldEdit for Modded Servers.
1 Login to the Kinetic Panel and stop the server.
2 Navigate to the File Manager.

3 Drag and drop the WorldEdit Jar that you downloaded into the Plugins Folder.

4 You can now start your server & Worldedit should be installed!