Publishing Models and the "Target Database Instance" List of values

Hi All,

Is there a way to restrict the "Target Database Instance" list of values when publishing models to remove our production instance? Currently we have a production instance as the source of item/BOM information which we populate into our Configurator instance for model building. We are then publishing to a clone of production for a round of testing prior to sign off. I was wondering if anyone has a way to omit the production instance as a publication target without removing the DB_LINK or the production entry the CZ_SERVERS table? We will still need to import from production on a regular