Hi Rocketsupplies That isn't possible I'm afraid but there is an option to remove out of stock items from the products page if that helps at all. If so it's on the ECT Admin -> Parameters page under Miscellaneous, "Do you want to remove out of stock products from the products pages."
That could be a show stopper. We have 1000 items and over half of them are pre-order only, so they are out of stock. Customers need to be able to see just what we have in stock. https://rocket.supplies