That's a pretty advanced topic. Like a lot of advanced (and some intermediate) topics, you read a bunch of varying documentation and play around with it yourse

That's a pretty advanced topic. Like a lot of advanced (and some intermediate) topics, you read a bunch of varying documentation and play around with it yourself before you get a good grasp. For me, one of the more useful things were these slides that talk more about the when and why instead of the how: http://www.vrplumber.com/programming/metaclasses.pdf http://www.vrplumber.com/programming/metaclasses.pdf