Quantities and Sizing can be added in directly from the Working Order.
This info can be entered under the Items & Details Tab in the Working Order. Just enter in the desired Quantity next to the appropriate Size.
After entering in quantities for the first product, you can then apply those quantities to any products in the order with similar sizing if you wish.
Click Apply to Similar Size Groups to apply the quantities to any products in the Working Order with the same sizing conventions. This feature is only available on the Web at this time.
From the products tab, you can also enter in quantities. Just click on the product and to the right hand side you can enter in units then add to order.