The TRA should be all set to go, but you'll have to run a couple of extra wires to the CM200 to make it change channels.
The last three screw terminals of the TRA should be the relay contacts for F1/F2 (common, normally open and normally closed. Not sure which is which, check with an ohm meter). The relay will toggle as you press the F1/F2 button on the remote.
The common would hook to ground. Just run a jumper over to the black wire on terminal seven for this. For the normally closed terminal run a wire to pin 6 of the CM200 and also a wire from normally open to pin 8.
Then in CPS you would program the accessory package as "channel steering" and the inputs as low.
All there is to it, pretty straightforward.