This addon will allow your users to collapse/expand some parts of your website:
These toggle functions have a cookie memory, except those marked with the sign "*". It has been tested on several browsers FF, IE 8 , Chrome and Opera with the default style.
It should work with most of the styles. If it doesn't please contact first your theme creator so he can first check the source of the problem.
Use any automatic installer or upload the files on your forum directory and import xml file
Configure this addon in admin->home->options->ToggleME
To configure the appearance of the collasped category, go to: admin=>Appearance=>Style Properties=>ToggleMe
Creative Commons BY 3.0
XenForo cookie Integration by TFH
"Creating an addon" tutorial by Lawrence