Hmm Im almost 100% sure the miyanos I have are bnc34t's and that the turret tools are called with m61 to m66, and offset calls for these tools are done VIA the auxillary page using t71 to t7x, with t70 being the offset cancel.
"sub programs" are stored between blocks g101, g102, g103, and g100, allowing a total of three sub programs to be stored to memory. You call each with m41 m42 and m43, with m90s in there as wait codes.
I've done a lot of simultaneous machining with it, its great fun making a machine older than myself do things even the veterans didn't know was possible
Be very careful running through single block or in dry run. Sub programs do not run in dry run, ie. They run full rapid, and if you're in single block make sure you do not turn off or on single block during a sub/main program execution. Wait until the B is done or some weird wonky potentially tool breaking things can occur.