once you pass the bind issues which could be a real challenge on DSMX, you wont be able to reassign channels differantly, so plan on channels 1-4+ are same as each other.

This option is real common desire with glider pilots who want one model setup but want to grab any plane in their fleet for thermal of the day, may check into a glider section.

Graupner does this with a feature they call a global bind where during the process all rx you desire to be global are energized and bound using the global option at one time