I’ve been wondering about this myself. In my 2 or 3 live performances with the Octatrack, I’ve mostly messed with

  • delay sends
  • filter sweeps
  • playing with Hold/Release values as Allerian suggested

It’s been fun, but I still feel like 95% of what’s going on is still pre-programmed.

One thing I’ve recently started to add is one shot trigs for fills. If you’re programming drums on Octatrack, add some one shots, then hold Enter as you’re switching patterns and you’ll get fills over the transition. By pressing Enter selectively you can get some variations.