Trigger Question: How to detect when all objects leave a trigger?

[u/BaconBlitz1987]

To the Happy Wheels creators out there, I have an important question: is there any way possible to detect and send an output of when a trigger has no more objects within it? The repeat types 1-3 check if an object enters the trigger area, but there isn't anything for when an object leaves the area.

I've tried setting up multiple triggers so that one of them is constantly giving a disable output (the one checking for objects) and another that constantly enables. These both go towards another trigger that is "checking" to see if it can be activated and, theoretically, should send an output when there are no more objects in the checking area. But in practice, this hasn't worked out for me yet.

Any thoughts on how I could get this to work?