On mobile devices, the footer takes up much more vertical space and can take up an entire screen:
You can show or hide the payment methods you accept in the footer.
You can add up to four content blocks to your footer. These blocks can be text blocks or navigation links.
Use the Add content button to add a new block.
A text block is just what is sounds like: it’s a block of text that you can use to say anything you want. Typically, this would be used to describe who you are and what you sell.
You can add any of the menus you have configured in your Shopify dashboard’s Navigation settings area. Once you have chosen a menu, Context pulls in its name and all of its menu items into your footer.