In EBS we use report set which internally calls two or more reports.
In Oracle Fusion we have similar requirement where end user want to run only one report which will call two reports and two output files will be generated.
In FAW's Oracle Analytics Tool, you can use 'Actions' and 'Action Links' to call other reports. The same is true for BI Publisher.
The documentation on that starts here: https://docs.oracle.com/en/cloud/paas/analytics-cloud/acubi/use-data-actions.html#GUID-7AACD0C9-9CC1-430D-BB0F-66513BD138CE
Regards,
John Whitaker
