watchlist

Hello!
In the past the watchlist section had an option to show only the films which haven't been watched by choosing 'not rated by you' or sth similar. So the link to the list could look like 
https://www.imdb.com/user/ur56223/watchlist?mode=grid&page=1&my_ratings=exclude&licb=0.4122120644039031&sort=list_order%2Casc&ref_=login

Now I can't find this option anymore, the link doesn't work either. How can I sort my watchlist by excluding the watched ones? It was so convenient to navigate through the list when you could sort it that way. Now I'm totally lost - I can't find what I was going to watch as some of them had been added so much time before the website changed.

Could you help me to get the way to navigate correctly?