Unable to add a replication only repository

Hello.  It seems that with Rapid Recovery (RR) prior to version 6.4, I was able to add a repository for replication only.  This replication only repository was outside of our licensed capacity.  with version 6.4 and 6.5, this seems to be missing.  I can add a DVM repository, but that will go against my capacity.  Am I missing something?