Thanks for the reply..
The navigation you showed , shows all the the active document/users and the sessions, but I suppose we can't figure out which user is using session cal from those details.
I want to check if I have 5 session cal , so at any point of time, which users are using those.
You can user System monitor tool to get the information.
I am using System monitor 4.1 -> Licenses tab to get the information.
Hope this helps.