ORDR/RDR1 Question

Good Day

Experts:

I am in need of some assistance interogating the RDR1 table. On the SalesOrder

screen in the Matrix, I cannot figure out how to get to the data in the RDR1 table for the corresponding row. The #'s displayed for row numbering in the Matrix are just that...row numbering. If line items have been deleted off the Sales Order then the #'s will not correspond anymore. So, how can I get to the RDR1 record for a selected row in the Matrix?

Thanks,

Ed