Hi, I'm currently done setting up a new Shopify retail website and using Wholesale Pricing Discount app for the wholesale part. I would like to add a option for my wholesale customers to request for drop ship service (with this option selected, a drop ship fee will be added to the total), and the customer can upload their packing slip for us to include with the drop ship order. This option will be shown during the checkout process (perhaps the shopping cart page). Does anyone know if there is an existing app for this, or any programmer can help me add this feature? Thank you.