How do I add a Group Key to an existing group on the PGP Universal Server?
To add a group key to an existing group on the PGP Universal Server
When you click Generate, a new group key will be created using the current default settings for a group key.
When you click Import, the Import Key page appears. Select a key file or paste a key block, enter the passphrase of the private key, then click Import.
Caution: A group can only have one active group key. If you add a group key to a group that already has a group key assigned, the existing group key will be overwritten by the group key you are adding.