Edit invoices or allocate credit notes to the matching invoice

I often have to adjust an invoice after posted since I subcontract to a main contractor that may not approve my original invoice. If they forgot to advise me that a different amount has been paid, I may not even know until I reconcile the bank statement. Reconciliation options need to include a link to the relevant invoice where I can work out what item needs to be adjusted, then I must either adjust the invoice and reprint, or add a credit note to that same invoice so that I can see which invoice was adjusted. Currently credit notes seem to only exist independently from the invoice that needed to be adjusted, which may sometimes also be needed.

If I ever have to review an invoiced project or send a copy of the invoice, it should include the updated balance after credit note applied to avoid confusion.