The clip launch rectangle doesn't respond to midi calls as it uses control surface methods to move around, i may be wrong but is it the case that when you hold the session button the clip launch buttons change state to represent each button as an 8x8 grid of slots and is lit to show which ones contain clips? I'm at work so can't check...
A bit late but thanks for this, close to what I was after. Unfortunately it doesn't actually highlight which areas have clips in them. It just shows a red grid showing how far your rows and columns extend by multiples of 8, with yellow ones representing where your launch rectangle is presently. So it doesn't actually highlight where your clips are. This would be really useful for me seeing as my songs are arranged in diagonal groups, the division between them would be rather easy to spot.
Anyone know of any other tricks for moving the clip launch rectangle around while were on it?