XF 1.3 Guide to create singular forum site?

Does there happen to be a guide anywhere on how to set XF up to display the thread listing of a single forum as the default along with the standard sidebar? I can visualize what I want and I've tried to search but can't find anything. I know someone has to have set it up this way.
I should have made mention that I know index page route and have tried that but when you click forums on the navbar or forums on the breadcrumb it reverts to the index.php?forums/ link.