Hi Arlo,
First, the play/pause automation is also great for rehearsal (even the initial idea wasn't exactly to use it like that).
In the same way, what do you think about to get the possibility to start the automation in some defined points. The typical situation in my case is 2 songs chained as a single song, then automation put the first document for the first song, follow it, and then put the second document and follow it for the second song.
And what it could be great is to memorize some flags in automation (why not like landmarks for docs) , from which we could start the automation, so not strickly in the beginning of it each time. I see it for rehearsal at some points, some if we could name them, like "chorus" "second song" etc....
Thanks