I don't know if this has been suggested before, but I think it would be cool if I could sort my lists in the same way you can with a genre search. Like, when I click on my completed list, I could sort the list by Date Changed, Rating, and Average just like when doing a genre search you can sort the search by Title, Year, and Rating.

But isn't the option already available on the bottom of reading/completed list?

haha.. thanks. I've never noticed that before. Probably because my complete list is so long I never scroll all the way to the bottom.