Good day!
I'm looking for VM category module or a way to modify an original one - next to module title there is a button to show - hide module content on click
(http://i61.tinypic.com/xfdohy.png)
Can be done with some JavaScript, depending on the Joomla template. See the modules on the left on http://demo.virtuemart.net/ and look at the code.
Try the Custom Filters free version
http://breakdesigns.net/extensions/custom-filters
thanks for replies! some how I've managed to make "+" button next to module heading like in Beez5 template on VM demo site. And it works. I had to join my module.php file with module.php from Beez5