Add additional CA certificates to an existing certificate
It would be very helpful to be able to add additional CA certificates to existing certificates.
For example, in our case, on a domain with Let's Encrypt, it's required to add origin-pull-ca.pem from Cloudflare (https://support.cloudflare.com/hc/en-us/articles/204899617/) but trying to set sslclientcertificate (Nginx) or SSLCACertificateFile (Apache) as additional directives will trigger an error of duplicate syntax.
Therefore, it should be possible to go to Domains > example.com > SSL/TLS Certificates > Click on the certificate > Add more CA-certs
Thank you for your input! We will consider this functionality in upcoming releases if it will be popular. Everyone, please continue voting for this feature if you consider it important.