I would like there to be a way to control the loop points of samples with commands. Is it possible?
Nope. There is a script for doing it with MIDI but not natively automatable. Not sure if, with that script, it is then possible to do via the MIDI Meta-Device or not as I haven’t had a chance to test myself and my queries on whether it works or not have never been answered (or I’ve missed it/forgotten.)