Edit DLS IV User
From DLS5 Wiki
To edit a user, simply double click a user in the Users list. Three tabs will be available for editing:
General - allows Language change
Password - Update the user's password or Lock/Unlock the user
Member Of - Assign the user to a User Group, or change which User Groups are assigned
Note that all saved changes will take affect the next time the user logs in (if the user is already logged in, the user must log out and log back in).