How can I create a Group Jive Categories page/module where it shows the categories and visitors can select a category and after selecting category they see the different groups under chosen category, the only selection I can create is an events page showing different groups with events

O.K- here us my scenario- I am creating a directory of companies that run events for american football and I want to use group jive as the plugin- the categories are Football Camps-Football Combines-Tournaments-Trainers. Under a category like Football Combines I would create a company listing(group jive group) like Schumans National Combine- by creating the listing as a group, it alows me to post all of Schumans events under the events tab within his Listing page/group page. I want to be able to all visitors to see all categories then choose the category they want to see and after selecting they would see all the listings/group pages of companies under that category- is that not possible?

I am creating a directory of companies that run events for american football and I want to use group jive as the plugin- the categories are Football Camps-Football Combines-Tournaments-Trainers. Under a category like Football Combines I would create a company listing(group jive group) like Schumans National Combine- by creating the listing as a group, it alows me to post all of Schumans events under the events tab within his Listing page/group page. I want to be able to all visitors to see all categories then choose the category they want to see and after selecting they would see all the listings/group pages of companies under that category- is that not possible?