If during a lesson I pop-up the notation and then I close the new window, how can I restore it in the old position (beside the player) without reloading the page?
Sorry if I cannot see it :-)
I'm not sure you can do that without reloading the page. You can view the notation below the video player. Or hit print and open it in a new window. But I think refreshing your browser window is the only way to get the separate notation page reopened.