Certify the Web CNAME Delegation for Validating Domains in SANS SSL Certificate

I need someone to instruct me on certifying the Web CNAME Delegation for a Domain Validation SANS SSL Certificate. This will involve using a DNS Service to implement the CNAME Delegation, and I need it to be able to cover multiple domains with a single SSL certificate. The certificate must be a Domain Validation SANS SSL Certificate. Please let me know if you are able to help me set this up. I already have everything mostly set-up. I just need someone to clarify for me the records for each of the Alias domains and the primary domain, as well as what exact CNAME Delegation Rule to use in Certify The Web.