Shopify expert who has worked with their shipping codes

Is there a way to change the size of Shopify's shipping label size to fit onto a 4 addresses/sheet label (such as ---------- ) ?

According to Shopify chat it would take a lot of work. If it does, it's not worth it to me. I'll continue to use it the way it is now. However, if it can be changed without much cost, I'd like to do it.

This is a one-time project.