I was looking for an extension for OpenCart 2.0.x that would generate a simply designed page showing names(s) and description(s) of product(s) contained in an order while processing the order, similarly to the way invoices are generated. I guess some of the code for generating invoices could be used, but I'm not skilled enough to code it myself.
The idea is that the seller, while confirming an order and generating an invoice to be printed, would also be able to generate a page with names and descriptions of the products in the order, which he could print and put the paper together with the invoice to the box to be shipped. I hope I express myself clearly

I have searched for it but I found mostly extensions doing things in customers' interface, while we need this in the administration, or extensions generating PDF files which we don't really need (the exact design is not crucial at the moment, a simple HTML page printed from the browser will do) plus they generate them elsewhere in the administration than the order section, which is where we need it.
Does anybody have any idea?
Thank you very much
bhy