Vrsumo2017 Yeah, that is what I have been doing. 2 problems though. 1, if the original creator of the playlist adds more videos to the playlist, you won't get them in your copied playlist. You will just have the same videos that were there when you made the copy.
The 2nd problem is, where do you find the favorited interactive/BYOJ videos? Again, you can make a copy and find them in the Playlist section, but if it gets updated by the creator of the interactive/BYOJ, you only have the way it was when you made the copy.