I find myself wishing I could boost the Tempo of a song/pattern/Perf in the midst of things, but it’s kind of tricky to turn the knob just the right amount (a few notches at most usually) when my hands are busy playing my keyboard part and I’m concentrating on singing. Tapping 4 times to set a new tempo would very hard to do. But if I could just tap a button once or twice and it would go slow or speed up one notch at a time, that would be useful.  Has anyone discovered an alternate method to change the existing tempo a notch at time without using the knob?

How about using the [INC] and [DEC] buttons? Each press should result in a one-step change. If you need more rapid change, holding down [SHIFT] and pressing [INC] or [DEC] will result in 10 steps at a time. See page 14 of the MOXF Owner’s Manual.