I am playing with Mission Planner for the first time. I have a 6 channel radio, so I need to set set channel 6, which is controlled by a 3-position switch, as the channel which selects flight mode.
I have found FLTMODE_CH in the parameter tree, but I am not sure how make the change. I can change the value by clicking and typing, but I must be missing an obvious step because this action does not seem to have any effect. How do I save my changes to this parameter?