How to output multiple FSG reports to one workbook like the Client ADI Publishing Sets

We use Client ADI and all of its features to publish financial statements and we are in the process of upgrading to 12.2.5 and implementing Oracle Report Manager. In Client ADI, we use a publishing set to publish a report set. The publishing set allows us to put the output of multiple reports in the report set to one Excel workbook with multiple tabs. For example, we have a report set with 22 reports in it. Of the 22 reports, 12 of the reports will go to one workbook and each report will be a separate tab in the workbook.