Shipping options
Enabled shipping options are available for customers to choose
during the checkout process. Only one shipping option can be
chosen per order. If there is only one shipping option active it will be
applied automatically to an order without the need for the customer
to choose it. Some shipping options may have specific criteria which
must be met for them to be available during the checkout process.
To view or edit payment options in the admin area go to Settings ->
Shipping options
Enable/Disable a Shipping Option
To enable or disable a shipping option change the status dropdown
and click the [Save Shipping Options] button.
Modifying a Shipping Option
To modify a shipping option click the modify link next to the shipping
option you want to modify. Each shipping option will have different
fields depending on how it works.
Creating New Shipping Options
If you are familiar with php you can add new shipping options. To do
this go to includes/shop/shipping_options directory and copy an
existing shipping option folder. Rename the folder and edit the files
inside it to create a new shipping option.
CMS Help - Shipping Options