RSA SSL problem

[Dominor]

Server and domain logs are filled with these:

[Thu Oct 02 12:09:07.016612 2014] [ssl:warn] [pid 8036] AH01909: RSA certificate configured for client-domain.com:443 does NOT include an ID which matches the server name

My clients aren't going to purchase ssl certificate for their domains, so I want to avoid this warning on every client domain logs.

Is there a way to set a default option in: Tools & Settings > SSL certificates > Make default (secure websites by default with selected certificate) ---- TO SET THIS OPTION TO "NONE" CERTIFICATE?
Now I have to select server's main SSL certificate which doesn't belong to clients domain.

 

[Dominor]

I know that I can select none certificate on every domain, but this task is getting harder when you host many many many domains.