Initial State of "Previous" and "Next" Buttons
I'm having trouble making the initial state of the prev/next buttons hidden. I have tried being creative and making some triggers that cause the button to be hidden and for one slide this worked but for another more complicated it is not working. The trouble slide has three buttons on it and I would like the "Previous" button to be hidden until the user has visited all three of my buttons on the slide (which each branch to other slides but all return a slide or two later). I can set the initial state of anything on the slide to whatever state I want but since the prev/next are not on the slide, I'm not sure where to do this. Any suggestions? Thanks!