hmm, well luckily for myself we only use one option. I set the default shipping method to that and have not had to change it.

Have you already set that option in the merchant center to what you already use?

if so, you wouldnt have to worry about code as its already entered on their end. that may be the easiest way to handle the question anyway. Im just not sure what would change if you entered more than one. I know it asks for a default, it will probably just display that no matter what you enter there...