yes, use transporter to bring the commands into the mx-780 from the 900
Also try playing with the "repeats" in the macro screen. (holler if you don't know how to do that)
I'm Not an engineer, but I play one on TV. My handle is Tweety but I have nothing to do with the organization of similar name. I just had a really big head as a child so folks called me tweety bird.
