[GNC] Customizing of trial balance report to have a standard appearance for auditors

[finfort at gmail.com]

Hello!

Can you please help in customizing the trial-balance.scm to add some 
data in this report?

These is what I need to see there:

- the opening balance for start-date

- the sum of debits

- the sum of credits

- the ending balance for end-date

- the subtotals per account group in the balance sheet.


This is a standard appearance for preparing Financial Statements.


Regards,

Dimitri.