What i want to do it see what each computer is doing in my network and what data (websites) they are visiting.
When you expand the endpoints group view on the left pane, you should be able to check with who a computer is exchanging data across your router.
Yann has a good solution. You can also download Orion and NetFlow Traffic Analyzer and try them out free for 30 days. Much more depth in reporting and you don't have to fire it up again each 60 minutes.