this comes really handy controlling other Loopers like the one in Ableton Live. To be able to keep track of whats going on, which button of the looper is active etc ie: 1) you press switch 1 which is set as Record IA for ableton looper, switch turns from dark red to red. 2) you press switch 2 which is set as Play IA, switch 2 turns from dark green to green switch 1 to dark red again and to off state. 3) you press switch 3 which is set as Stop IA and it PLay IA goes dark green....etc etc etc. Would come handy also with bunch of other stuff. Thx.