Let’s say, you organized your categories like this
CAT1
|_ CAT.1.1
|_ CAT.1.2
|_ CAT.1.3
CAT2
|_ CAT.2.1
|_ CAT.2.2
|_ CAT.2.3
Is it possible that you enable only the main categories links on the left side bar
CAT1
CAT2
And by clicking on e.g. CAT1 in the side bar the user is directed on a page where he only does see an overview of the subcategories linked
CAT.1.1
CAT.1.2
CAT.1.3
But not it’s contents/threads?