I tried this and set it to pedal 2, but it's acting funny. I set the DSP to rotary on Zone 1 (Where the organ sound is) and I set pedal 2 to"speed" under "common" for the Stage Setting. Then I disabled pedal 2 under zone 3 (where it was previously enabled and set up to toggle percussion on/off) and turned it on for only zone 1. The rotary speed switching works, but only when I have zone 3 selected on the front panel. If I go right to the stage setting from another stage setting it defaults to viewing zone 1 (as per the norm) and I can't switch the rotary speed with pedal 2 until I tab over with Zone + so that I have zone 3 selection. There is obviously some kind of hold over from pedal 2 being setup until zone 3 in the initial stage setting, but I don't know where that option is.
I have run into similar issues with other patches when I make a fader/knob/pedal do something different on a different zone than it was int he factory preset. It does what I want but only when I have the original zone selected. Sometimes I have had it where the fader does sometimes different depending on what zone is selected. (I had distortion set up on knob 2 on a synth patch which I added to a piano sound. The piano had knob 2 originally mapped to mid eq. I set knob 2 to distortion for the synth and only turned it on for zone 2 [where the synth was]. It would distort as desired when I had zone 2 selected, but if I tabbed over to select zone one, it would distort the synth as well as changing the mid eq for the synth, but leave the piano sound uneffected [as it should because I had knob 2 turned off for zone 1. This if obviously a different issue, but probably related to what I am doing know/not understanding for the organ tone.)