Reset a lesson to the beginning

Hello group, usually when I open a lesson that I have previously been studying, it opens near the end, even though I completed it the last time I studied it, and often if it includes audio and video, the video/audio will be in one place and the page view text in a another place. It take a bit of work to get it all back synced to the beginning of the lesson. It seems there should be an easy way to reset a lesson to the beginning, Am I missing something or is there not a way to do this? Thanks