The Edit Users/Groups dialog switches to this mode automatically when Users is selected.
The left pane displays all users. The right pane displays all groups that are assigned to the first (selected) user. The Assigned Groups pane updates automatically when a new user is selected.
The Users button adds a new user.
The Users deletes the selected user.
When you change the name of the selected user in the User: text field, the Rename button becomes active. Clicking the Rename button updates the user name in the server user/group management system. Existing policy grants with that user name are updated automatically.
The Assigned Groups button allows you to assign groups to the selected user (in a subsequent dialog). Select all desired groups and click OK. To exit without assigning users, click Cancel.
The Assigned Groups button removes the selected user from the selected group.
Click Close to exit the dialog.