I know how to use the idle down and throttle cut feature on the 9C, but I want to use the idle up feature on the acro mode. I now use the idle down on feature for idle, and idle on feature off as idle up but the alarm goes off until I idle up then back down.

Is there a way other than programming an offset to the throttle. I can do that as well but would want to use a pre-programed feature to get my results.

Idle up mixes are pre-programmed mixers in the heli functions, only. You'll have to use an offset mix to get the throttle to act like a heli's idle up when in the airplane acrobatic menu.

Thanks, that is what I figured!