Chapter 15 Unified Threat Management for FortiOS 5.0 : Application control : Application control monitor : Application Control monitor
  
Application Control monitor
Once you have configured application control and associated the sensors with firewall policies, you can monitor the results. The applications that will be reported on the ones that are included in sensors that are assigned to firewall policies.
Security Profile > Monitor > Application Monitor.
Here you will find some widgets that include charts:
Top Applications by Bandwidth
Top Applications by Session Count
Top IP/User for <application>
The number of “Top” can be set to the value of 5, 10 or 15 on any of these widgets.