How to add dynamic collisions and modify collisions?

[IntegralsGetYouArea]

Sorry if this is the wrong place to ask. I couldn't find a support channel to ask about Chickynoids.

I'm having issues figuring out how to implement dynamic collisions (i.e. a physics object that need to have collisions with the player).
I'm also having issues with enabling/disabling collisions and recalculating them. For context, my game is related to users building in an environment where some physics will happen and I would like for collisions to be dynamically recalculated. While other parts such as placing blocks shouldn't be updated every tick hence why it would be nice if I were able to recalculate collisions specifically for part.