I Really hope you are not serious in saying that, adding invoices together Manually?? What's the point of an automated accounting system then?

I was better off using MS. Excell. If this issue is not addressed I might change back to it. 

We need to have an open invoice, that we can add to periodically, which we then post at the end of the month. Also we need to have the possibility to add custom columns, all sorts of businesses have their specific needs, and these many times need to be added to each line item.

QBO please note this, the second one is maybe a 30 min job for a programmer!!