In the Web Interface toolbar, select Users.
Select the Group tab.
In the Group list, double-click the group, or select the group and click Edit.
In the Edit Group dialog, view or modify the Group name or email address. If you modified information, click Save.
In the Membership and Access pane, view, add, or remove role assignments for the group.
If you remove an item or role, click Yes to confirm the removal from the group, or click No to keep it.
Click Close.