To change the members of a group:

1. Click Administration in the top menu bar.
2. Click Groups in the left navigation panel. The 'Manage Groups' screen will be displayed.
3. Click Edit for the relevant group, in the 'Operations' column. The 'Edit Group Details' screen will be displayed. Users who already belong to the group are shown in blue; users who do not currently belong to the group are shown in white.
4. Press the <Ctrl> key and hold it while you select (or deselect) the users whom you want to add to (or remove from) the group.
5. Click Save.