If your media collection is growing out of control, it may be time to organize your Plex library. Content collections are a criminally underused part of the Plex app. Not only do they have massive organizational benefits, but you can also use them to customize the way your libraries look by using artwork and other metadata. However, before you can use Plex collections, you need to understand how to enable them on your libraries, how to view them, and how to edit them.