Welcome back to the Community, Pewters.

I'm here to help you print packing slips.

 In the new invoice format, there's a new way to print the packing slip. You can find it on the customer transaction lists. Here;'s how:

1. Go to Customers & leads and select Customers.
2. Select the customer's name to display a list of their transactions.
3. From the Transaction List tab, select the box next to each invoice or sales receipt for which you want to print a Packing Slip.
4. Select the Batch actions dropdown, then choose Print packing slip.
5. The print preview screen will open so you can select printing options, preview, and print.

Another way around this is to go back to the layout and select Print packing slip after creating an invoice. Keep in mind, once you click the Old Layout you can no longer move back to the new one. Refer to the screenshot below: 
 

Switch to the Old Layout

Print packing slip

If you want to learn how to personalize and add specific info to your sales forms, you can read this article: Customize invoices, estimates, and sales receipts in QuickBooks Online.

I'm delighted to have you here. Feel free to come back if you have additional questions. I'll be happy to lend a hand. Take care, and have a good one.