Personalized Movie Lists

This app is the best of its kind and I have been using it for many years now. The only thing missing and which in my opinion would be fundamental is the possibility of creating personalized lists also in the movie section, for example by collecting all the films of a specific director or an animation studio in a single folder in order to understand immediately which ones are still to be watched. I hope this is a workable implementation.
Thanks and keep up the good work!