BarneyBrown: It's been a while since I worked this out. My brain still hurts. I don't think I can address your exact scenario right now because I don't have a couple hours of silence to think about it!
But in order to help you possibly come to a solution I will suggest you keep in mind this:
I got my scenario to work because you can use an aux switch that works on the opposite mode of the mode you have selected on the box. I.E. if I am in preset mode I can program a switch that will affect the unit as though it is in play mode.
So you have to program the correct aux switches AND be in a specific mode (preset/play) to have it work.
This was the key. But it is very close to rocket science.
Good luck. I wish I could give you the exact answer…
