Yep, good old Micro Edit!

But if you just make ONE mistake, kudos to you! Personally I’m a much bigger fan of being able to import and export style Divisions to a DAW, which gives you a VASTLY easier editing environment than a list edit.

All kinds of options exist to allow things like groove quantize, velocity compression, controller editing and the like, all in a nice big graphically rich environment.

Nowadays, I think this is by far the easiest way to edit styles…