Peter,
I’m a long time reader of this forum, but until now, I have never registered.
I registered solely to reply to this forum and say thanks! Your screen capture explanation was not in vain and you just saved me a ton of time! I have a multi-cam set up with quick changes, and it’s a very complicated composition with several hour render times, and without your neat trick I would have had to do the usual extra work in composing all the angles (and griping that you can’t switch between cameras in AE!)
You’re the man!