In Sakai, one needs to often go back to the top of a page. For example, if one is in lessons, and the lesson get to long.
It would be nice that the top frame and side frame can be frozen, that one return to them at any stage.
For a example look at https://www.w3schools.com/css/default.asp
On this website the side frame and top frame are frozen, which make navigation much simpler.
I would suggest that the frame be frozen below the "Home, Overview" part of the attached file.
Thank you for your assistance.