Use Navball to display spacecraft attitude with respect to local orbital frame

The navball is very useful to quickly check the attitude of the spacecraft in a more precise manner than just looking at the 3D representation. However, the attitude with respect to the inertial frame is not the most useful for most Earth observation satellites. Instead, the attitude with respect to some LOF (Local Orbital Frame) is much more useful. It would be very helpful to be able to select which LOF to use, among the most common ones (QSW, TRN, LVLH...).

If a selection of different frames is too complicated to implement, at least add the LVLH frame.