One of the guys in our club managed to come up with a configuration that uses switch C for airbrake/neutral/flaps down. However trim on the ailerons only works on the left wing.

Can you send me a step by step the way you would do it?

As always, thanks for the help.

Couple of other questions/suggestions:

Simulate the radio programming with an app on a computer or smart phone.
Download/backup all of the configurations.
Download and send the configuration to someone else.
Easily see on the transmitter the configuration - which switches activated on what function and what mixes are in use. It's pretty tedious to navigate between all the options.