[GNC] Invoice system and Deffered Income

[Sergey Mende]

Hi there,
I am trying to figure out if the existing customer invoice system is
suitable for my needs.
For simplicity, let's say I have the following accounts:

Current (Bank)
Undetermined Income (Income, for bank account transactions just imported
from the online banking)
Deferred Income (Income, used at invoice creation to track invoices that
are posted and sent to the customers but not paid yet)
Income (for invoices that got paid, so the payment actually received as a
bank transaction and processed as a payment of an invoice)
Receivable (A/Receivable, for tracking invoices)

The problem is that I don't like to see non-paid invoice splits in the
Income Register until the invoice payment arrives to my bank account,
imported and processed as invoice payment.

The idea is to assign an incoming imported transaction as a payment for an
invoice from the Bank account Register and change the Income account
appropriately, so the paid invoice appears in the Income Register

As I got from the docs, this mailing list and my experiments,
there is no way to change the Income account after the Invoice has been
posted and specifically at the payment processing step.

Am I missing something?

Thank you,
Sergey