1. Click Security and then go to Certificates > Trusted Certificate Groups.
  2. Expand the trusted certificate group you want to edit.

    Add a certificate to the group

    Drag it into the group from the certificate list.

    Delete a certificate from the group

    Click to the right of the certificate.

    Edit the trusted certificate group parameters

    Click the Edit icon and then make your changes. If you edit these options, click Save to save them.