LOL, would have been helpful yesterday! Already managed to get everything updated. But thanks for that tip, I didn’t know you could select movies like that (though I guess it makes sense). Hopefully others will see this when adjusting their collection #'s and save some time. 
This is a welcome improvement, but still incomplete. We still need an option to hide collections with fewer than some number of items.
This new feature does allow control over when Plex creates new collections, but there is still no control over which collections are displayed. If a collection already exists with less than the specified number of items, the user has to manually delete it. This would apply any time a user increases the criteria for automatic collection creation or deletes items causing the total count to fall below the threshold. Once Plex creates a collection, it remains as clutter in the library that the user has to manually clean up.
Same thought here. I was hopeful they got it figured out but after messing with it and tons of reading it’s only the “auto collections” this applies too. Which isn’t the solution I’m looking for.
To be more specific, lets say I have a MCU collection, and I have the Dr. Strange movie and the Iron Man movies in there. I put them in that collection, I put the Iron Man movies in the Iron Man collection. They are available as their own series of films and in the over arching MCU collection. Perfect. Dr Strange though is currently only accessible in the MCU collection. If I want it to be available as it’s own film and inside the collection I have two options. Make it so films in collections aren’t hidden which kind of defeats the point of collections and doesn’t clean up the library. Or put it in a collection by itself so it shows up as it’s own film.
It’d be great if that collection could just be flattened to the movie, but still maintain it’s status outside of the MCU collection accessibility, or at the very least when you click it pass the screen where you pick the one and only film in it.
I know this was a request when collections where introduced. Maybe I misunderstood what this thread was asking for when I voted it up since the new solution does seem to fix OP’s original issue.
There’s a separate feature suggestion that’s dealing with the design choices Plex made when it comes to items in multiple collections (or how Plex should behave instead)
Thank you! I shall move my vote lol
Adding My Vote to this option
Add my vote to this, very frustrating that I’ve a bunch of collections with 1 movie and even more bizarre a bunch of collections with 0 movies.
This has allready been implemented. Dont waste your vote
Cool, just updated to the new Plex Agent and there it is, brilliant.