>>>I want to have two DBCs that will have the same tables. What would be the fastest way to create that new DBC?
>>
>>Copy the folder.
>
>Oops forgot to mention one thing. The second DBC will have a different name.

You could copy the folder and rename the dbc/dbx/dbt. Then - I think - you'll have temporarily remame the source folder, and open each table. The odds are each table will ask for the database (backlink) it belongs to.

But I'm just guessing