World edit is one of the greatest plug-ins for Minecraft.
SELECTION EDIT
The first part of this is to understand SELECTION EDIT!
SELECTION EDIT make you change, move, set blocks, and a lot of other things by selecting the cube
GETTING THE WAND
First of all you need the Wand to be able to use this tool. To get the wand you can pick or create a wooden axe, or type:
//wand
Using the wand with left click u can select the first point and using the right click you set thee