Select the button you want to link and click the Edit button.
Within the General tab, you can link your button to:
A particular page on your website (expand the dropdown to select the page);
A phone number;
An email address.
Note: Prefixes for emails and phone numbers will be added automatically, so simply insert your phone number or email address.
When you're done linking the button, close the Button settings and your changes will be saved automatically.
Open in a new tab - opens a page in a new browser tab.
Make link nofollow - enables the setting that tells search engines (e.g. Google) not to use the link for the page ranking calculations. In other words, such links are ignored - Google doesn't even crawl them.