How do I get actual precision in editing a models collision mesh?

Hello, I am new to unreal engine but I have used unity before and it seems like unity has a much better way to create collisions for models, In unreal engine it doesn’t seem like you can edit any values to collision meshes without using the default tools (Scale, Translate, Rotate) or it isn’t obvious where these values are stored, I’ve tried using the auto convex but that doesn’t work in my case, I just want to know if there is a missing window I’m not seeing or if there is no way to do it.

I have seen people use other programs like blender to create collision meshes but I would assume there is an easier way to do it inside unreal instead of relying on other programs.

I suggest you have a look at something like this: How To Make Custom Collisions in Unreal Engine (on imported models) - UE5 Tutorial - YouTube

I suggest that you create collisions from your actual modelling application if you really care about creating collision. However, Unreal Engine has some tools you can use to create collision for your meshes.