Lack of information about WorldRoot

Hello. I’ve been trying to make a fix for my game, and I need Region3 for this. Parts in that Region3 can be retrieved with a function of WorldRoot. The thing is, that this is what my eyes see when I’m trying to learn something about WorldRoot:

As you can see, absolutely no information, except for properties and stuff. How can we retrieve it, how can we use it, what can it do - all of this is a very big mystery. Please fix.