The Popup Modal is hidden by default and can be triggered using the Header Button displayed near the Main Menu.
The Popup Modal settings can be found in Theme Options > Header > Popup Modal. The full list of options can be seen with the Header – Popup Modal article.
Using other buttons to trigger the Popup Modal
Since version 1.4, you can trigger the Popup Modal using any button. For example, open the Button element settings modal and check with the Button action option.
This functionality is available with the following elements: Button, Call to action, Photo box, Pricing table, Process steps, Sliding box and Sticky navbar.