How to program DX7 for differential for aileron and flaperon for planes?

[remauled]

Hi, could someone point me the way to program mixing please?

I am using an AR7000 and hope to have some differential between the left and right aileron. i.e. when turning, outboard is 100% while inboard is -50% travel

I hope to use flaperons as well and like to learn to program please. Thank you for your advise.