I should have mentioned PX-5s and the shift needs to be done in near realtime.
I realize I could just make another stage setting but I'm trying to keep the number of stage settings down as I'm already over 5 banks of stage settings and have to write them on the set list to keep track of what's needed for each song.
So I'm looking for a quick way to shift pitch by one octave on two zones with just a controller adjustment.
Its funny that I've gotten so used to just tapping the screen on the MZ-X and turning the knob one click or setting the octave switch to just affect the voices needed.