i have some buttons with 2 functions, and some with one. my feet are to big to have a successful x-y pad though. I've decided to instead of trying to get one scene with pedalls tht do lots of stuff, I use softsteps ability to store scenes. So I have multiple scenes I scroll through which do different things in ableton live, like a global scenee, then different scenes for effects on different tracks, I have a few scenes dedicated to midi notes, and 2 scenes that control the drumrack in veiw. I'm always adding and adjusting these. but to answer your question I so use multiple functions, but at most I would have 3 modlines programed. thats just for me though. I'm sure some others have all 6 modlines going.