[philsnow]

I have a nested setup with a "meta" screen session with escape key ^Z, which holds named "project" screen sessions with escape key ^O.

I background tasks in the shell seldom enough (because I'm always in screen) that I don't regret ^Z being slightly less convenient. ^O is a fairly unknown but very useful insert-mode binding in vim, but I use emacs these days so I don't notice it being escaped.

Before I used separate escape keys, it was maddening trying to remember how many times to hit ^A to send commands to which nested session.

[dnhz]

C-o is moderately useful in emacs to move your current line down while the cursor stays on the newly created line.