How to duplicate woocommerce shipping method rules
Clone shipping methods
This feature allows you to duplicate an existing shipping method and its rules with a new title.
For example, if you’ve already created a shipping method with multiple rules and you need the same setup but with a different price or country, you don’t have to build it from scratch. Instead, you can simply clone the method in one click and make the small changes you need.
After the click, it will clone the same shipping with a duplicate postfix name
Then, you need to change the status to activate and update the shipping name title and rules that you want to change, and save it so it will start showcasing on the cart page.