bergsportgids.nl/index.php?option=com_k2&view=itemlist&layout=category&task=category&id=2&Itemid=64by creating a item in a 3th level submenu, in this case Klimgebieden- Frankrijk  -Hautes-Alpesin the main category (klimgebieden) will all the sub categories be displayed with the number of items in the 3th level submenu (Hautes alpes).see link for a live preview