Scenario: Say I have 2 domains, afraid.org, strangled.net. In this scenario, afraid.org is already in the system and strangled.net is NOT, and I want to clone. Subcloning ON - This does a pattern replacement of the contents of each record, this includes Web Forward page title's, URLs, CNAME destinations, everything. (e.g. any contents of a record containing the string 'afraid.org' is translated to 'strangled.net') Subcloning OFF - This duplicates hostnames and contents ONLY. The contents of each record is not re-written to the new domain. (e.g. any configurations mapped to afraid.org would still remain to afraid.org, this simply copies the subdomain hostnames, attaches them to the new domain, and leaves the contents of the records alone).