Guess the move

Is there any possibility of adding a "Guess the move" feature (like at Chessgames.com <http://www.chessgames.com/perl/guessthemove> or this program <sites.google.com/site/fredm/>) to Lichess? I find it helps for study of GM games.

Just a side note: the correct links are http://www.chessgames.com/perl/guessthemove and sites.google.com/site/fredm

Thanks!