What is Oracle Fusion alternative for rowset and columnset used with FSG reports in Oracle EBS?

Summary:

In Oracle EBS, FSG Reports maintenance was quite simple. We used to maintain rowset and column sets. We can combine any rowset and columnset to form a FSG report. For example there are 10 rowset and 12 column sets, then we can combine, any rowset and columnset to form a report. Let say there are 5 reports which use same rowset and different column sets. In this case, we need to modify the rowset only once and the new change will be reflect in all the 5 reports using the same rowset when FSG report was generated. In Fusion to handle