Select your model in the 9CAP
Then hold down menu until it goes into the Main Menu
Press menu again to go into the advanced menu
Look for "Flaperons"
Select that, and then program them.

As long as you have a 6ch RX and two ailerons servos...your good to go.

Plug one aileron into the regular aileron channel on the RX, and the other one into ch 6 on the rx.

Now test everything out before you fly.