Showing a hidden button on 2nd visit to the slide

  I have this as slide 2 of a project and the Review & Lab buttons jump to other slides, and then those are directed back to this slide.  I do not want the transparent “Click here to skip to quiz” button to show until the learner comes back to this page a second or subsequent time.  Essentially, I only want it hidden on the first visit to the page, but any time the user comes back around to it, […]