[Theme Horse Support Team]

Hi Casandra,

Install the revolution slider. Create a revolution Slider and edit the slides -> layer content.
There you can see the text/HTML field to insert the button. View this screenshot http://awesomescreenshot.com/05a54ywx31

Also according to WordPress.org policy Revolution Slider Plugin has been removed from version 1.0.1 because of non GPL code. There will be no longer Revolution Slider Plugin available in this theme. You have to purchase it from the codecanyon.net/ individually. So that you can update the version automatically as well as have dedicated support. Sorry for inconvenience

Thank you!