9C lets you program the trainer switch to operate control functions?[:-] Interresting.
What I do with my old Super 7 if I want switchable flaperon/spoileron mixing with elevator is I use the 3-position P-mix switch Up is the ailerons deflect up when the elevator goes up. middle is no mix. down is the ailerons go down when the elevator goes up.
Click-click-click
I have to play with the mixes for a while every time I do it from having reset the model memory.

can't seem to memorize the manual.