How can I do this?

[nibb]

Hi, I would like to show some categories in the main vbulletin form as collapsed.

I dont want to deactivate this categories, but my forum is to large and I would only prefer to show 4 or 5 on the main page. I thought I would collapse the rest, so they are still there but they are closed to visual eyes.

I searched everywhere and i dont see how can I do this. I did not find the setting. As a user you can collapse them and the browser safes the setting but its not for me I want this, but for people that enter the forum.

Has someone accomplished this?