Is "Manual Folder and Sorting" an option?

Okay, I have a problem.

I have some TV series that the order I want them in is neither the DVD order nor the Aired order, and Plex just absolutely freaks out over this. I really, really, REALLY just want to be able to tell it “Add this folder to this channel, do not rename anything, do not pull any outside information for it, just put the files in there with the same names and sub-folder structure as present on my HD”.

The series I’m fighting with at the moment is Steven Universe. It has 4 episodes officially in Season 2 that are part of Season 1, and a number of shorts.

Plex insists on pulling the order I don’t want off the internet, and it refuses to acknowledge that the shorts are in their own separate folder and instead… merges them in as alternative versions of the season 1 episodes?

I really just want to have a folder structure for a master Cartoons library, with a Steven Universe sub-folder, and sub folders for Season 1/Season 2/Season 3/Shorts. I don’t want it trying to auto-rename anything. I don’t want it to pull pictures or descriptions or anything else.

The best I’ve been able to do is make a Library specifically for Steven Universe, but then its not organized well (I want all of the cartoon shows under one library, all the live action shows under one library, etc), and it treats each folder as a separate show so everything comes up as “Season 3 Season 1”.

So, question, how do I force Plex into doing what it logically should be letting me do by default, but isn’t?

Go to the Preplay page of the whole show (important: not of a single season or a single episode). Then at the left side, click on the ellipsis ( . . . )
Perform a ‘Fix Incorrect Match’, then go to ‘Search Options’ and choose the ‘Personal Media Shows’ agent there.

This way you have to provide all metadata yourself.
It will solely rely on the file naming (which still must follow the conventions for tv shows) for episode ordering,
embedded metadata (if the files are in mp4/m4v file format and embedded metadata are actually present) for episode titles and posters,
or sidecar posters.