Thanks for the topic. Hope you are having a nice day.
Sorry, but the Previews page not included in theme, it is created only to show information about theme.
Let us know if you need any further assistance.
Our preview page is html page, it’s not WP page that’s why we don’t have directly these elements.
But Massive Addons offers other cool effects for texts http://mpcthemes.net/products/?product=massive
Check and maybe you’ll choose one of them.