I did not know about the CTRL tip, that does help a bit, thank you!

A balance due on the history and perhaps an indicator on the invoices list whether they are paid or not, perhaps a new columns or even row colors, i.e. color the row red if its unpaid.

So I have a situation that I was wondering if there was a better solution for. I've sent each invoice to the customer before posting it to their account, for multiple (about 3-4) invoices. Its been about two weeks and they claim they have not received the invoices. Is there any way to send/print all...