I asked on the official support forums back in April and he responded with:
Asobo/MSFS does not have autopilot for helicopters yet. They are working on that. When they are done and it’s released in a sim update then I can add the functions and code. So still waiting on it myself.
I hope when he referred to “they are working on that” that he has some insider knowledge of Asobo working on a system for helicopters.
It would be so great to get a little assistance when cruising in the H125.