These buttons can be used to incite action. For example, to get your readers to visit a specific page.
They can also be used to link your readers to another site, to write an email, or to call a phone number.
These buttons are available on a Smart or Pro site.
To add these buttons to your site go to “Add a New Block” and “Special”.
Scroll down and you will see “Call to action button".
Watch the tutorial video:
How To Add A Call To Action Button