How to blink next button of storyline player when the timeline end of the slide.

Slide 2 seems to work that way now. The secret is that for each marker, take its own state out of the conditions. There is a timing problem. It seems the system advances through the conditions before the state change is completed. But if you click on one marker, and the other three have been visited, you will have visited all of them when the button starts pulsing.