Heading are only shown when magnetometer is in use

Heading lock to Magnetometer direction (compass control)

Reached the maximum limit of the shown presets number

attitude-and-heading reference system / attitude and heading reference system (AHRS)

For Official Use Only (FOUO)

Only use to compensate for really bad tunes

Use Dshot beacon (use motors to sound beeps when disarmed)

weapons magnetometer

Navy ASW magnetometer buoy

magnetometer

Calibrate Magnetometer

Magnetometer (if supported)

Magnetometer calibration finished

Magnetometer calibration started

eyes only

night only computer generated image

FEDCON (Federal Employees and Contractors only)

double-action only

once-only approach

admittance by authorized credentials only

interact with character mode files only

Core Only

electrically erasable programmable read-only memory (EEPROM)

Failsafe only

Hexadecimal digits only, 0-9, A-F

Only arm after successfull EDT handshake

Only flash firmware if you are fully aware what you are doing.

Only MULTI mode currently supported

Return altitude (meters) - only applies in Fixed Altitude mode

RP (increment only)

RPY (increment only)

This sets if the TX only beeps one-time versus playing a startup song

officers' eyes only