Besides X/Y, you can control program change, hold, pad touch (similar to hold, but it operates slightly differently and is usually the better choice), and a few other parameters that I’m forgetting because I never use them. In the video I posted, I think I was p-locking hold, and sending LFOs to X/Y and program change. When you use it like this, it’s essentially like a hardware version of Effectrix by Sugar Bytes.