Greetings. I'm going down the Ableton programming rabbit hole, and before I get too far...
It looks like it's pretty straightforward as far as telling Ableton the MIDI prg # and the Bank #, however... If I rearrange the performance order for different sets using Rig Manager, will the Prg # and Bank #'s stay the same?? Or will I need to go in and re-program the Ableton project? I think I know the answer!! 
Thank you!