Invoicing - Country-specific module request

In Hungary, there is a requirement for invoicing software:
1. The first print generated should say "Original" on it.
2. Subsequent prints should say "1st copy", "2nd copy", "3rd copy" etc

Can someone help with this country-specific requirement?

I want a complete invoicing system that will allow Admin to completely edit the purchase and then resend to buyer. This will allow for combined shipping, adding insurance, editing any aspect of the purchase and even adding more to the purchase if necessary. I also want the feature that the first invoice is original, then the second will say 2, etc .... Owner should have the ability to send out the invoice to the customer as many times as needed as a reminder to pay.
It's amazing that this most commonly used feature on eCommerce site is overlooked on OpenCart ....
What's with this?

postcardcollecting wrote:I want a complete invoicing system that will allow Admin to completely edit the purchase and then resend to buyer.

OpenCart does allow editing of order.