I've just downloaded myStore template and am trying to setup the K2 Store, I've got so far about 10 categories and many subcategories under each one of them at least more than six under each. At the front end the K2 Categories menu displays the main categories in an expanded format resulting in a long menu that makes the page very long.
How do I get to collapse the menu and show only the main categories so that a user has the option of expanding and collapsing the menu?