I see the original suggestion is 2-years old and nothing has come of it. The thing that annoys me is that having bookmarked a few individual videos that I think are really great, the latest lesson that I bookmarked appears below all those. I want the lessons that I am working on to appear at the top and then the individual videos in a separate section underneath. It should also not be difficult to have the lesson bookmarks move so that the lesson I most recently worked on appears at the top of the list.

yeah, so, there may be 3 options for managing (which may be nested as well):
* Current (auto, based on order of adding) - but revered (latest on top)!
* Auto (based on order of working/accessing them > latest on top) - suggested by @RuthBingham
* Manual dragging and sectioning (i think folders will be a bit overkill, we can have sections/separator horizontal lines to imitate grouping, but thats just my personal view)!

I agree this should be worked upon.