What is the tablename to obtain the FRS row and column definition

Summary:

We have a P&L of which the information is not part of the chart of account segment hence will required to build via BIP. However, since the P&L are having many rows and different order & display. We are thinking to define the P&L report structure in FRS where the BIP report can use to pull the row of the report.

The question what is the tablename that store the FRS report details definition.

Content (please ensure you mask any confidential information):

We want to pull the Row where it display the GL account and the Description (see sample FRS report -not the exact report below)