I am trying to build a course that directs a user by every time they complete a section they "unlock" the next section. But when they reach the end I want them to be able to go through the course freely and not arrive back at the beginning where it says all the sections are locked. Is there an option to only view a slide once? Or a way where I can have them arrive to a different slide that shows them all unlocked in replacement of the slide that only has one the second time around? Or does anyone have any other ideas on how to solve this dilemma?