To be able to do it you must follow these steps:

Go to the ‘Websites’ tab. Select ‘All Features’ on the left side menu;

Scroll down until you find ‘Footer – Social Media’ and click on ‘Business social media follow links – Vertical’. Insert the links of your social media profiles on the gaps; Activate the feature by turning it ‘ON’ and click on ‘Publish’;

To see the changes you have made to your website you must click on ‘View website’.