Currently it seems that whenever one landing gear engages, then they all do regardless of orientation. If you have a TxSignal set, then they all appear to trigger. One larger CVs, it is desirable to separate the orientations of landing gear for downwards being ground landing, sideways, or forwards etc being for station or other ship docking. When landing on the ground it is desirable to use the landing gear signal to retract (at least) lower turrets. For side docking to a station, then you may want a different action (for eg, leave some defence turrets active all round). So, I suggest that instead of the current behaviour, that landing gear instead only engage others in the same orientation. That should preserve the existing behaviour for ground landing while allowing different behaviours for side, front etc.
Might be too complicated in this - who knows. In SE scripts and modding it is trivial code to determine and group like devices in the same orientation on a structure.
I'd love to have this be the case too. I noticed it happening when I built a side docking port to mate with an asteroid base I took over and built a docking tube onto. Sure, the side gear engaged, but it also deployed the main belly gear and opened my HV bay needlessly in space.