Creating an assessment button after lessons are complete
I am working in Captivate 8 to create a course that has 5 lessons, which can be taken in any order. After completing all 5, I want to create an active assessment button that will take the learner to the assessment portion. I have seen creations where modules are created but I am using pictures that have variables on it and actions that change it from a color pic to a gray and check mark when it is done. My screenshot shows the pics before you complete, after they complete a gray version of it appears with a green check mark. On the bottom is the assessment button that I want to appear after all 5 are finished. 
I have been working on the advanced action for sometime and I am lost on how to make this work. can anyone give some advice?
