If I opt not to replicate FK restraints, is that found on the same options page where I set the behavior of replication for existing articles?
Sorry, I won;t be much help in deciphering how to use SSMS for this. I use T-SQL to setup Replication. In the call to sp_addarticle you'll define your options using @schema_option.
http://msdn.microsoft.com/en-us/library/ms173857(v=sql.105).aspx
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