In the Available User Groups list, select the members or groups that belong to this group and click the Add (right arrow) icon.
Click the Add All icon (double right arrow) to add all users and groups.
You can add any group as a member of another group except Everybody and All LDAP Users. Be aware of the membership of the groups you add as members of another group.
To remove users and/or groups from the Selected User Groups list, select the user(s) and/or group(s) and click the Remove (left arrow) icon. To remove all users and groups, click the Remove All (double left arrow) icon.