If you want to change the main domain from a Multi-domain SSL, we can not change it with the existing SSL.
But you can change SANs domains by re-issuing the Existing SSL certificate from a Multi-Domain SSL.
If you want to change the main domain from a Multi-domain SSL, we can not change it with the existing SSL.
But you can change SANs domains by re-issuing the Existing SSL certificate from a Multi-Domain SSL.