It may not be on-the-spot for your question, but this is what I use. May be useful for someone. I'll set the nano-preview to "Camera view", then move my camera in Top View to find the rough location I want it, in the meantime checking the view in the nano. When I'm satisfied, I click on "Director to Camera" (I find more easy to move in Director View), turn my main window back to Director and make small adjustment from that position. S.