Forum Categories Collapsable
 

Right now, Forum Categories (the grey bar) are static and always remain open. I was wondering if you planned a feature that will make them collapsable. So you can open / close the categories whom you don't want to see and such. From there onwards, it would be cool if it keeps your settings. For instance, if I close this category and I get onto the homepage next time, it remains closed untill I collapse them again? Kinda the same for widgets as those re-open everytime you land on the homepage again.