This article will explain how you can add code to the embed widget.
Scroll down to the Create your website section and click on the Website Builder icon.
Click on the Login button next to the relevant package.
Double click on the Embed widget in the editor to open the settings pane.
Enter your code in the text box and click on the Save Changes button.
Please Note: This may take a while to update the live preview of your new code in action.