Phew this will be a long blog. It’s quite a process to set up, so this is only going to be a high-level overview.
You need to create a Document Set content type and attach it to a document library.
Then you configure the settings of it.
Then what happens is your create a new document set that stores all the docs for that specific subject and rules for the content, like automations.
It looks like this in classic SharePoint.
And like this in modern.
HOT TIP
Content Types are notoriously tricky and full of you know what! If you create and use one, getting it deleted again is darn near impossible if you did it wrong. Do A LOT of planning before going down this route.
