Writeback Server - BigQuery ability to connect to table by ProjectID along with dataset and tablename

Currently BigQuery supports the ability to select from a table by Project.dataset.tablename.  Please extend this ability to the Writeback server configuration and setup so that we can configure the project to connect to when we specify the table name.  The connection target should be by expression or variable that changes based on the application.  For example App1 connects to App1.mydataset.mytable and App2 would connect to App2.mydataset.mytable.  The project id could be determined from parsing the app name for the id.