I’d like to double check these options - as I haven’t kept up with the last couple of release notes.
I’m using ELRS with and Yaapu. I think I have the RC_OPTIONS bitmask set properly, but there’s one option I don’t understand: “Annotate CRSF flight mode with * on Disarm”
If you look at the telemetry values on the radio you’ll the flight mode. FM. For example, if you’re flying (armed) in stabilized mode it would return " Stab ". But if you’re on the ground and disarmed it would return " *Stab ".
It doesn’t do anything for Yaapu so it doesn’t matter if you check it or not. Useful maybe if you’re writing scripts for your radio and you want the arm status.