Mixer: tail rotor

Tap a number to type a new one.
Tap the switch to change it (green = on).
'Save' appears once something is changed: it writes all three Mixer pages, after a question.
'< Previous' goes back to main rotor geometry, changes kept.
'OK' leaves; if a change was not saved, it asks first.

Tail rotor type shows what the flight controller has (Variable pitch, Motorised or Bi-directional). It is set in the configurator, and the rows below change with it.
Yaw reversed: green = reversed (the configurator's Yaw control direction). Check on the bench which way the tail moves.
Yaw calibration [%]: how much of a full stick reaches the tail (0 to 1000, one decimal).

Variable pitch tail

Yaw centre trim [deg]: the blade angle with the yaw stick centred (-24 to 24, one decimal).
Yaw limit CW and CCW [deg]: most blade angle each way (0 to 60).

Motorised or bi-directional tail

Yaw centre offset [%]: the output with the yaw stick centred (-100 to 100, one decimal).
Yaw limit CW and CCW [%]: most motor output each way (0 to 250).
Motor idle throttle [%]: the tail motor's idle (0 to 25).
It shows only for these tails.