I've looked through the lists of APIs and if any fit what I'm looking for, I either didn't see it, or couldn't figure out how to use it. At the moment, all I want are APIs that allow me: to stop players from moving tokens into something (exactly like the dynamic lighting feature) except I want it to be able to be used on top of the dynamic lighting feature and not block line of sight; I also want something that stops tokens from occupying the same space, effectively having tokens block movement for other tokens.