Another option is to use one of the calculation add-ons for the QuickBooks desktop editions, either FormCalc SST for QuickBooks, or CCRQInvoice. Both products can provide the quantity column totals you want, and a lot more. FormCalc SST, for instance, lets you apply Excel-compatible spreadsheet calculations to QuickBooks forms (invoices, etc.) in near real time, and CCRQInvoice lets you batch process calculations on a list of invoices, all at once. (Each product has advantages over the other for specific uses.)