This is probably a big ask, and I'm not sure how much benefit other users would get from it if it were implemented, but it would make life easier for me.
When I go to the viewing history to keep track of which episode of what seriees is due to be watched, I sometimes wish that you could click the topic headings to make the column re-arrange in alpha-numeric or, for example all the lost episodes viewed would be grouped together in the viewing history under L, as well as the date watched.
Not sure if I explained it well, but if you don't understand my suggestion, ask a question, I'll babble incoherently some more to try to explain further...