As I mentioned in a post above, none of the QuickBooks editions (except Enterprise) can total the Quantity column. To do that with Pro or Premier you need a 3rd...
You could create either a calculated field (in the form's header) or calculated column for Margin using either of the 3rd-party add-ons, FormCalc SST for QuickB...
And if you want both the Due Date and Ship Date to be calculated automatically (based on an Estimate Date or Invoice Date), you can do that with a 3rd party cal...
@Firstcarpentry, the two main calculation app's available for the QuickBooks desktop editions are FormCalc SST for QuickBooks, and CCRQInvoice. Both have been a...