These screenshots illustrate how individual users will see the list of dashboards that they have access to.
 
This is the login id through which the end-user logs in.
The first level in the list is the Group name. 'IT' is a pre-defined group name during the setup.
This is the category level, just below the group
This is the dashboard list under the category node. The dashboard list displays the name of the dashboard and the connection name.