Trigger behaviors for a Multiplayer Shared Camera

Hi everyone,

Have been using trigger volumes as boxes, capsules and spheres to automatically modify the orientation of a shared camera as players move through.
Despite trigger volumes are useful for some cases, other areas would work better if the trigger is represented only as planes, dividing the space in two.

In theory, a trigger plane would apply the orientation when one of the players overlap moving fortward and revert the orientation when one of the players return back to that plane, the concept of an End Overlap event for this case is irrelevant.

One can image a huge trigger box volume to achieve the same result by ignoring the End Overlap events, but that does sound an overkill feature and I have already tried it. It seems that a trigger with a plane collision component would be enough for this purpose.
Are there any other options besides triggers you would suggest to perform this operation?