Hi Arlo!
Would it be possible to do that:
I mainly use annotations in rehearsals to note changes or to make notes on documents regarding specific changes for specific gigs.
In both cases the annotation is showing up in all setlists, that are containing this song.
For me it would be better, to only have the annotation (lets say) for only one show, just be within this show and not affecting others.
A solution could be something like a "merge pdf and annotation and save as version 1"-function.
Thanks
Christoph