My understanding of Dataverse is that the data contained in the tables is not shared between environments. For example, the rows in the Contacts table in envA are not the same rows that exist in the Contacts table in envB.
So what if I have a core dataset that must be identical and readable in all environments-- for example a Building table with a row for each of the organization's buildings. How can I make that editable in one environment and readable in all the others?