As a basic requirement of any decent course, I’m sure there must be a way to go back to the beginning and restart, and also to re-take individual sections, but I have not been able to figure out how to do it. Please advise.
Just scroll all the down and click on the first lesson.
You can also clock on any lesson again to retake
@gie2910 is correct! You can re-do any puzzle or quiz you like, simply tap back into it (there is a pop-up for puzzles that will ask if you want to reset the code).
We’re also about to offer the ability to reset your whole profile (in our next app update, which should be happening in a few hours time), via the Profile option in the app menu.