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.

Hope that helps!

Thank you Chris, I'm pretty sure that with the old site it was possible... 

No problem, anyway 🙂

I also seem to remember that being a setting on the old version.  I'll mention it to the coding team and see if it's a feature they can add.  Thanks!