I click on the menu, I go to the control center then I choose Advanced Desktop Effects.
This brings up my CompizConfig Settings Manager.
I looked in the Cube preferences and I must be missing something.
How can I
A. Have different backgrounds for different virtual desktops (Total = 4)
B. Make the Top and Bottom of the 6 sided cube virtual desktops and switch to them (Control Alt Down just flattens the cube)?
Not sure if this is possible but I'm tossing the question out there anyway.