This can be done through the advanced template editor by following these steps:
going from control panel into design then customize template then click at Footer icon then click Social Column Links and You will find own settings and corresponding them on the storefront as icons ... Next image for illustration
Social Column Links :
In this heading we will find the following settings: The Column Title in which you can add a name for this column indicates the means of communication, and there is the possibility to hide the name of the address according to your wish by removing the Display Column Title mark ... You can also add links to the social accounts of your store, such as Facebook, Twitter, LinkedIn, Google Plus, Pinterest, YouTube channel, Instagram, SnapChat, What's App)
There is the possibility to add more than a new link and do its own settings by adding the link of social communication account
Save Icon: This icon means when you press at it means the amendments that have been made and applied and appear to Admin of the store only without publication and appearance to customers online ...
Publish Icon: This icon means when you click on it means to apply what has been saved previously to be published online on your store for your customers ...