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Once a method has been added you can edit the specific details of the method by clicking the edit button as shown below.
More details on the configuration of method level information are available here.
On the shipping method list you can also select which method is the default method for the store. To select the default method just click the Make Default button. The default method will be preselected for the customer during the checkout process. The screen shot below shows you how to identify which method is currently the default and how to make a different method the default.
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