We have an issue with the "To Be Printed" flag changing on an invoice. Our billing clerk will create a bunch of invoices from Sales Orders. She does these one by one in order to verify that the paperwork matches the SO. Once she's done creating all of the invoices, she goes to the Transactions > Management > Print Checks and Forms, selects Invoices, then prints all of the invoices to a single PDF that gets sent to our mailing processor. The problem occurs when someone goes to one of those new invoices and hits the "Print" button before she prints them to the PDF. The person printing the invoice doesn't realize that she hasn't printed it yet, and it changes the flag to False. Those invoices never get mailed and we have AR issues. Any idea how to prevent users from printing invoices until our billing clerk prints them?