You can add and edit social media accounts by using the social media widgets in the widget section of the editor.

Select Widgets from the left side panel. Scroll down to Social and select the type of Social Media widget you want to use.

After adding the widget to your website, click on it to open the edit Social Icons pop-up. This will allow you to edit the icons under Design and enter your social media links under Content.

Click here to learn more about the different types of Social Media Widgets available to you.