Remap Program Change Buttons
I have an M-Audio Midair 37 wireless MIDI controller (basically a wireless three-octave Oxygen 8) that I've mad scientist-ed into a keytar. It has +/- buttons for program changes that send sequential prog change numbers, which for my purposes isn't useful.
I want to re-assign the buttons to simply increment and decrement the current patch number in Mainstage. I can see them sending program change #'s in Mainstage's top window, but when I create a custom button in the layout window and put it into learn mode, they do not register. I'm guessing this is b/c they're aren't considered to be actual "MIDI controllers."
I already checked the MidAir owner's manual to see if they can be reconfigured to send another type of data, but doesn't look good. Anyone have any idea how I can remap these?
Mac Pro, macOS 10.12