Not knowing much about docking windows, I've just avoided the topic until now.

So, what I'd like to do is to have the properties window and document view, one above the other, at the far right, extending the full height of the screen. Then, I'd like to dock the command window at either the top or bottom of the screen, but stopping on the right where the document window begins. Unfortunately, what I've tried below gives me the windows in the correct positions, but the command window extends all the way to the right margin, shrinking the properties/document windows.

DOCK WINDOW document  POSITION 3  window properties
DOCK WINDOW properties POSITION 2
DOCK WINDOW command POSITION 3

What's the way to do this?

Cheers,