Before using Shipping Options remember to enable this option by setting shipping_options to true. When the option is enabled the field will be visible in the Shopping Cart like in the image below.
You can defined new Shipping Options with the following markup:
"Standard Mail": 20,
"Express Mail": 50,
"Next Day Delivery": 100,
|“Standard Mail”||20||To the prices for products in cart will be added 20 in the currency which is used in the shop|
|“Express Mail”||50||To the prices for products in cart will be added 50 in the currency which is used in the shop|