I have a lot of clients who want to use quizzes as a way to create an ACCREDITED program. So the only way to finish the program is if you pass the quizzes which then UNLOCK the next category. So the course content is metered by quiz failure and pass as opposed to time delays. Explained in detail in this 90 second vid: https://www.loom.com/share/5f9da6d5beac4153b2d7527ac937e617