OSA / PDF RT Parser

[DougV]

I'm trying to setup my Outgoing Data Structure of my OSA/PDF RT
Parser object to accommodate a request by the clients. This program
prints Invoices. An Invoice could have multiple Customer PO / Order
Type / Co. Whenever a change occurs in one of these 3 fields, they
want
these fields and sub headings to reprint, otherwise they are
suppressed. Here is an example:

Customer PO / Order Type / Co

Line Number DSC2 Item Number UOM Units Unit Price
Line Number DSC2 Item Number UOM Units Unit Price
Line Number DSC2 Item Number UOM Units Unit Price
Line Number DSC2 Item Number UOM Units Unit Price

Customer PO / Order Type / Co

Line Number DSC2 Item Number UOM Units Unit Price
Line Number DSC2 Item Number UOM Units Unit Price

How do you set this up in the Outgoing Data Structure ?