Adding notes to Favourites

I was wondering if it would be possible for me to be able to add notes under each video I've added to my list of favourites, indicating the reason it was added. Example: I found a warm up that is perfect for the upper body/Abs w/o I did today (that particular video didn't have a warm up incl). This warm up video was total body including abs.

Doing this will save time whenever I want to do that w/o again. I have quite a few favourites and sometimes can't remember why I included one particular video over another. 🤔