Dub searching & watch list searching

Something i thought that could be helpful was when searching for an anime and your looking for a dub theres no way to just search for animes that are only dubs, and if possible add a way to search thought animes that are in your lists, so for example i could remove all animes in my watched and want to watch so all i can see it animes i haven't seen yet as well as being able to search for only dubs. thanks and sorry if this is a hard read. i just woke up.