The aileron, elevator and rudder channel control surface angle can be switched in 2 steps
This function makes operation more pleasant by changing the operating curve so that servo movement
is sluggish or sensitive relative to stick operation near the aileron, elevator, throttle, and rudder neutral
position. Adjustments can be made in 2 steps according to the control surface angle.
Switches A to H can be selected as the aileron channel, elevator channel, and rudder channel dual rate
(exponential) switch.