Feature: Allow manual control or zeroing rotation for axis not relevant to current attitude setting #857
Description
The attitude settings affect the pitch and yaw of the ship but not roll, and CUSTOM + IGN can set one or two axes while ignoring the other two or one.
In this situation, I'd like to be able to make manual control inputs for those axes not being controlled by the flight computer, and also to have a way to zero them without having to turn off the other control axes.