Packing slips are just bag labels printed on a bigger size. On the Labels page choose 5.5' X 8.5' Packing slip (2 per Page) or 11' X 8.5' Packing slip (1 per Page) (or the 4x2 Packing Slip sizes, which don't need the Packing Slip module) and tick the bags under Bags, Delivery Bags or Pickup Bags. Content is controlled by Business: Labels > Packing Slip Bags (and Packing Slip Deliveries / Packing Slip Pickup for the standard labels): Company Logo, Ship To Information (name, address, gate, phone, delivery date), QRcode, Title, Order ID ("Bag: #45 (Order #1203)"), Shipping ID (pickup location or route), BarCode, the Table of contents with optional Table checkbox boxes for ticking off items, Table Meal ID, Table SKU, a Note line and the Thanks Title / Thanks Subtitle text from the settings of the same name. The table lists meals, by-the-pound, custom and extras with quantities; Show Internal Name on Packing Slip prints the internal meal name instead of the customer-facing one.