Next button and Elearning Brothers Template

Hello, I have subscription to elearningbrothers.com.  I am using one of the Storyline scenario templates (please note this is not a branching template).  The name of the template I'm using is called "Office Conversational Scenario Storyline" (#19690).  After downloading the template and using it for a new Storyline project, I decided that I want to duplicate "Slide 1" and to use it as "Slide 2" as well.  The problem is the duplicate slide only has a [Next] button, no [Previous] button.  I want to use the Storyline player, so I'd like to avoid having to create custom navigational buttons.  Any ideas on how to get the [Previous] button to display on the duplicate slide?  Thanks!