To configure this portlet you first have to create the related query. Open Users application, input the following where clause (under Advanced Search menu) and press OK button.
userid in (select userid from maxsession where active=1 and issystem!=1)
Save the query with the following properties:
- Query Name: LOGGEDUSERS
- Description: Currently logged in users
- Public: No
- Default?: No
Edit the portlet and select the LOGGEDUSERS query. In the Column Display tab select the following columns: USERID, TYPE, PERSONID.