I'm not "AT", but I can tell you from HARDLearned experience.....ANY model you select in your TX will CONTROL**ANY**RX that you have bind-ed(bound?) to that TX in the mode that it was bound in.
In other words, my heli crash a couple weeks ago was EXACTLY due to ***ME***not catching that I had HELI 2 selected when I needed HELI 1, and they both had identical Optima 7 RX's.

Lesson Learned.