Display output for a single vendor with multiple rows -- Credit and Debit details in one stretch

 I have a requirement to display the output in XML like the below                                                                        Account                                             TrxAmt         FncAmt

Vendor Name           Venodr No      Dr.      BGB005XR8P.E00HQ9410000.80171   12,800.00      8,211.97

GENPACT             DANBURY117    Cr.      BGB005XR8P.E00HQ9410000.80171   12,800.00      8,211.97

A Single vendor 'GENPACT' has two rows : One for Debit amount and other for Credit amount

I was able to display the output in different table outputs  in  RTF  by grouping Vendor details in one group...and Debit and Credit information in another group like the below

for-each LIST_G_INVOICE

for-each G_INVOICE                                                                  

Vendor Name           Venodr No      Dr.    

GENPACT             DANBURY117    Cr.   

for-each LIST_G_DISB