Add custom notes to movies?



I’m relatively new to KODI, running on a Mac with the default skin, but I believe this is not OS / skin-dependent.

I often save movies in my library because I read something interesting about them – they are a remake of or inspiration to another one, use certain cinematic techniques, won some award, explore a certain topic, etc. Months later, when I browse through my library to find something to watch, I forgot why I saved this or that movie. Is it possible to add custom notes somehow so I can add this kind of info?

I saw a previous thread asking for almost exactly the same: https://forum.kodi.tv/showthread.php?tid=323091 but it’s seven years old, filed under a specific Supplementary Tool and didn’t get useful responses.