Show additional layer after all other layers visited

Hey, Ned. I followed your instructions for the same application in my project, and the final layer shows up as expected, however, I want my user to be able to cycle through the layers again, or completely reload the slide.

As of now, I have an image with shape layers that trigger sub layer visibility. After all sub layers that I want the user to see have been visited, I have a "Next Activity" layer appear. However, if the user doesn't click the "Next Activity" button and wants to cycle through the sub layers again, the "Next Activity" sub layer doesn't return after the user has cycled through the sub layers a second time. I have an invisible shape layer that I had hoped would reload the slide and reset the variables I had made in your original explanation. I have set both the base layer and "Next Activity" layer to reset to initial state as well. Any light you could shed on the subject would be a huge help. I've attached an example of the slide in question.