When I started with the beginner’s course (https://rockclass101.com/definitive-beginners-guide-ukulele/) I whizzed through it. Got it…Know it… etc. Later I realized I was a long way from “mastering” many of the topics and I began again – paying better attention and spending the time it took. Because I marked each module/unit as complete it is difficult to keep track of my progress (for real this time). I would like to request the ability to uncheck the modules/units or even reset them all to make it easier to start over.