To view users currently logged into the web application click on the 'Current Logins' sub menu link under the User Logins sub menu.
Current User Logins
As you can see, a table is generate summarising the users logged into the web application.
Note that the 'App Name' column is simply the name of the application which the user is logged into. For example there may be cases where customers are setup with a re-brand of the TMS2 web application and so the App Name column could show a different value.