How do I use Organization Units?
Click Add Root Unit. This might be Corp HQ or Administration, etc.
Repeat this steps as many times as you would like.
You can create hierarchies by dragging a folder with your mouse and dropping it on top of another folder.
You can move the folders around and create multiple levels of hierarchy as desired.
To move a sub-folder back to the root level, drag it above the higher level folder and drop it.