Configuring transactional replication with updatable subscription via SSMS 2012 Can I configure transactional replication with updatable subscription via SSMS 2012 (SQL Server 2012)? Is this removed from SSMS 2012 or I'm just missing something here?
updatable subscription is deprecated. 

If you still want to implement it, you have to use T-SQL. You wont be able to do it using GUI.

See Updatable Subscriptions for Transactional Replication and Deprecated Features in SQL Server Replication