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Yes, outside this plug-in. I have seen people use raycasting to do this, or collision filter based on z-elevation. I think there are some examples in the Construct Community Discord, so you could also look there.

You could use a physics engine like cannon-es, but you will need to know JS to use it. There is an example of general cannon-es usage in the devlogs.

I just used the first person platformer example and added stuff around it like math with a wedge shape to do slopes.