Changing the TX to beta channel?

Anyone know how to change the TX to beta channel or how to turn it off via OTA? I’ve got one TX V1.1 on stable and one TX V1.0 on beta. Neither like to talk between their respective air units lol. It sure would be nice to have a firmware version change log to look at. It would also be nice to bind more than one airuint to a particular transmitter. I tried using one tx between a bathymetry boat and a drone for mapping. The button programming would get confused because one cube would be running rover and the other copter. So I got another TX and a few more airunits. Solves the button problem, but my photogrammetry drone and lidar drone need to be re paired when switching from one drone to the other.