Shipping_label attribute

Hello, after doing some research, it appears that delivery_label will only work in UK markets, while in the US, Google Commerce Manager requests that users use the <shipping_label> attribute to add a custom label to each product (e.g., oversized, perishable, fragile), and then you can set up different shipping costs for those groups.

Is there any way to use a shipping_label attribute in the Google Product Feed plugin?

Thank you!

The page I need help with: [log in to see the link]