In the main menu, click Content > Popups to view the Create a Popup page. Here, you can create a popup window message that will appear on up to three pages that you specify. On each of the pages, the same message will appear in the popup.
In the Popup Visibility section, begin by entering up the Page URL for up to three pages on which you want this popup to appear.
In the Popup Extras section, use the - and + buttons to choose the number of seconds that you want the popup to display before it disappears.
In the Popup Headers section, enter Popup Title, Headline Text, and Subheader Text that you want to appear at the top of the popup.
In the Popup HTML section, enter the test Popup Title, Headline Text, and Subheader Text that you want to appear at the top of the popup.
Select Save at the bottom of the page to commit your changes, and then navigate to your page(s) to see the popup appear.
In the Popup Visibility section at the top, only enter everything after the ".com" in the URL of the page you want it to appear on, similar to on the Settings > Meta Information page.
e.g. your home page would be just "/"