description
The radio's special characters can be used with the following text constants.

Special Character Constants

CHAR_RIGHT
CHAR_LEFT
CHAR_UP
CHAR_DOWN
CHAR_DELTA
CHAR_STICK
CHAR_POT
CHAR_SLIDER
CHAR_SWITCH
CHAR_TRIM
CHAR_INPUT
CHAR_FUNCTION
CHAR_CYC
CHAR_TRAINER
CHAR_CHANNEL
CHAR_TELEMETRY
CHAR_LUA