Hello Dave,
When you apply version control to your model, Package data is exported to XMI files and these are then placed into version control. Some of the data used in your model, the Reference Data, is not stored as part of any particular package, but it can still be exported to an XML file and subsequently imported into another model.
Currently, EA does not provide an integrated means for version controlling the Reference Data. Of course it is still possible for users to manually apply version control to these XML files.
From the main-menu, choose "Tools | Export Reference Data..." then select the tables that you wish to export, such as "Model Authors", "Project Roles", "Project Issues" and click "Export".
To import the reference data into another model (as you would need to do to share this data to another user in a Private Model deployment), choose "Tools | Import Reference Data..." from the main-menu.
Best regards,
Howard Britten