RM Customer Statement - Report Writer

I'm looking to be able to modify the RM Customer Statement to show each document and it's outstanding

balance in the proper aging category like so:

Current                    0 to 30          31 to 60      61to 90     >than 90

Document #1                       $500

Document #2                                                                               $255

Document #3                                                                                                                    $800

The RM Statement Temporary Header file give you the Aging but only for the total Balance of the Customer and the RM Statement Transaction Temporary File give you each individual document but does not put the amount into its proper aging bucket.  Is there an easy way to achieve what I am looking for?

Thanks!