[Feature] Group Movies like Indiana Jones, Saw, etc...

Feature Suggestions
1

Highly requested feature for 3 years now.


https://forums.plex.tv/index.php?app=forums&module=post&section=post&do=new_post&f=120

2

duplicate -> https://forums.plex.tv/topic/60922-catagories-in-movies/?hl=group

3

early 2021 clean-up: duplicate / implemented (collections)