How do I navigate among the videos?
In the “Browse Media” area, select the Category (e.g., chapter title) from the drop-down menu, then select the subcategory you want to view. You can also use the “Video Type” feature to see all the videos, or only the ones you’ve not yet seen, or ones you’ve started, or even mastered.
Once you start a video, it is tagged as “Started,” and it cannot be reset to “Not viewed.”