Hi Giovanni,

I even have 2 MFC10's. One for a permanent position under my keyboard at home and one for if I perform live. Right now I have OTS 1, 2, 3, 4 on buttons 6, 7, 8 and 9.
Button 0 turns harmony on or off.
Buttons 1 to 5 are for the variations and breaks. I'm happy to say that I don't need it that often any more then when I started a few years ago, but especially with live playing it's nice to have "some extra hands" to do breaks and fill ins.

Bert.