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

Hi Walt 

So many thanks for your reply, very much appreciated. It works perfectly. 

Unfortunately I can not use the trick when there is no layers, like when I have used interactive markers. 

I could set the timeline to a very long time, but the point really is to make the trigger fire when last object has been visited. 

is there another method I could use.