Shopify Packing Slip Customization

I'm looking for a Shopify expert to help me customize our packing slips. We need to include the fulfillment location on the packing slips. I am reading you can use the app FLOW to setup custom fields to achieve this. I attached a screenshot of what I need.

Key requirements:
- Customization of the packing slip code to fit our needs.

Skills and experience:
- Proficient in Shopify and Liquid coding.
- Previous experience with customizing Shopify packing slips is a plus.