Don, what you're trying to do wont work. You need at least be able to play minor and major chords. To play a minor chord you must place both feet on and beside the pedal of the root note. That means you will have to move both feet at a chord change. How are you going to play keyboard with both feet in the air? You need at least one foot on the ground for stability.

In One Man Band you can assign one of the bass pedals or the sustain pedal to a major/minor trigger. You can assign the minor trigger to the high C and play chords with your left foot or use the low C as minor trigger and play chords with your right foot. You must press the minor-key-pedal before you press the chord that is intended to be a minor chord.

Using the bass pedals for variation triggers is also possible with OMB.

I think it is best that you download the most recent update at http://www.angelfire.com/music5/onemanband This update has an extra window in the user interface window (menu settings/userinterface) where you can view the exact code of the MIDI
signals coming from your bass pedals. You need this to define the key range for chords and the key of the minor/major trigger.

Jos