Do I just set up for spoilerons in the 9C and the game will pick it up?
Yes, but you must still choose 2 channels for the wings.
Turn on spoilerons on your radio then go into advanced control mode. Then move your ailerons, left and right. You'll see 2 bars move, ailerons and another channel. You need to assign that channel. Just like you would a real RC plane.
I guess I have the same question for dual rates etc.
It will pick up dual rates automatically.
Anything else like mixes and stuff you still need to assign channels as though it was a real RC plane. Things like dual rates and expo are automatic, they are not switched.