How to restrict users to redirect to NWA from BPM Analytics (http:///bpmanalytics)

Hi Expert,

Could you please help me on how to restrict the users to redirect to NWA from BPM Analytics (http://<hostname>/bpmanalytics). I just want to show the BPM analytics tool page to users, but there is an option to redirect directly to NWA to see the process or task, I want to restrict it.

I tried to remove the roles, but in case user not able to see the exact number of process and task.  

Thanks

Div