eliminating goto reports source dimensional and Relational

[maxchuie]

We are eliminating goto and making them into 1 report with tabbed pages

Sources:  1 DMR and 1 Relational source in the package
Report:
User opens the report in WSA to add and remove attributes and add context filters from 1 dmr source only
User runs the report to open in report studio html and the context filters carry over to other tabs except the relational source

In the original version the goto works by using a detail filter passing the business Key

How can I pass the business key even tho I am unable to have detail filters in the new report?
Each report has its individual queries for each report page tabs