If I'm watching a replay and halfway through I find a mistake in my ai, I have 2 options:
1. Stop the replay, go to the menu, open up the ai editor, open up the ai, then find the branch and edit it, go back to replay, restart replay from beginning, repeat.
2. Watch the replay all the way through, try to remember all the small tweaks I want to make, OR ignore the small tweaks, as it's not worth the effort of going through the trouble to get to the editor.
The solution is to have a replay stay paused even if you leave it. (coding this would probably involve saving current timeframe then jumping to it [just trying to help]).
It would also be helpful to have some way to go immediately to the editor of the current Ai from replays.