Join custom reports
To be specific, I make bins in a customized Report A.
Report A: Company Region, New Company grouping (bins based on Company Region)
Report B: Company Region, Company Name, etc
Report C: New Company grouping, Company Name, etc
Report A is like a "mapping" table. Other reports like Report C will use this for mapping New Company grouping with Company Region.
I know how to filter based on the results of other reports but I don't know how to join the report.
Is this possible for such customized reports, or it's only possible for the provided reporting cubes?