Does Program Change Mapping ONLY apply to incoming program changes via MIDI? It would be great be able to have the onboard FM3 switches (or connected external switches) increment through this mapping - i.e. set up a full gig map and just have a button that increments through all the preset / scene combinations sequentially in the map that you would use in sequence in each song for the full gig. Probably this can't be done but I just thought I would ask.