Add-on Addon to split forum index across multiple pages

Hello, I was trying to split forums across multiple pages, and display certain categories of forums as its own page. Whenever i make a category a child node of another category, i get this:

Im trying to accomplish this:

It looks like a category that has a child category inside of it, but i am unable to make this work on my site.

Is there some type of Addon that currently exists for xenforo 1.3 that allows categories to act as a second forum index or splits the index up into pages?

Thanks, MCB