I just started making my new forum. On one of the forums I go on in a board they have like another section in there I want to know how. What i mean it's like you have the board where you post but the above the place where it says all the posts and stuff there is a rectangle and inside there's the name of like a sub-forum. How do i make one?

(Still don't understand what I mean? I don't blame ya. I'm bad at describing. I might put up some screenies to like show what I mean or somethin...)