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Pre-existing Collections & Default Hubs

Agregarr can manage collections and hubs that already exist in your Plex library, giving you control over their visibility and ordering alongside your Agregarr-created collections.

Pre-existing Collections​

These are collections that already exist in your Plex library - created manually in Plex, imported from elsewhere, or created by other tools.

Discovering Pre-existing Collections​

Agregarr automatically discovers collections in your Plex libraries:

  1. Collections are scanned from your Plex server
  2. Any collection not created by Agregarr is marked as "pre-existing"
  3. These appear in their respective screens with a "Pre-existing" badge

Managing Pre-existing Collections​

You can control how pre-existing collections appear in your Plex libraries:

Visibility Settings:

  • Users Home - Show/hide on the main Plex home screen for regular users
  • Server Owner Home - Show/hide on the home screen for the Plex server owner
  • Recommended - Show/hide in the Library Recommended tab
  • Library Tab - Promote to the Promoted Section or keep in A-Z section
note

Pre-existing collections always exist in Plex - Agregarr only controls their visibility and ordering. To remove a pre-existing collection from Agregarr, delete it from Plex, click the Discover button, and then click Clean Up Missing Collections

Reordering:

  • Drag and drop alongside Agregarr collections
  • Independent ordering for each context (Home/Recommended, Library)
  • Reordering works the same as regular collections
  • Pre-existing collections are intially imported in the A-Z section of the Library tab and will not have its sort title altered in Plex unless promoted using the up arrow button.

Custom Posters:

  • Upload custom posters to replace the existing poster
  • Apply poster templates
  • Changes are stored in Agregarr and synced to Plex

What You Cannot Do​

Pre-existing collections are read-only in terms of content:

  • Cannot add or remove items from the collection
  • Cannot change the collection name
  • Cannot delete the collection through Agregarr

To modify the collection itself, use Plex directly. Changes will be reflected in Agregarr on the next sync.

Use Cases​

Smart Collections:

  • Use the powerful Smart Collections feature to creatre collections based off existing content on your server from a wide variety of options including genre, actor, producer, country, release date, resolution etc etc.

Legacy Collections:

  • Collections created before using Agregarr
  • Collections from other collections management apps

Default Plex Hubs​

Default hubs are the built-in collections that Plex automatically creates, such as Recently Added, Top Unwatched, Library Playlists, etc

Managing Default Hubs​

You have the same visibility and ordering controls:

Visibility Settings:

  • Users Home - Show/hide on user home screens
  • Server Owner Home - Show/hide on server owner home screen
  • Recommended - Show/hide in the Recommended tab

Reordering:

  • Drag and drop to position hubs
  • Mix with Agregarr collections and pre-existing collections
  • Independent ordering per context

Time Restrictions:

  • Apply time-based restrictions to when hubs appear
  • Example: Show "Top Unwatched" only on Mon, Wed, Fri, Sun

Hub Linking​

Some hubs can be linked across libraries:

What is Hub Linking?

  • When the same hub exists in multiple libraries (Movies + TV)
  • Linked hubs share settings
  • If hubs are detected as having different settings on import, they will be unlinked.

Combining All Three Types​

In practice, your Plex libraries might have a mix:

  1. Agregarr Collections - Collections created from Agregarr
  2. Pre-existing Collections - Smart collection created in Plex
  3. Default Plex Hubs - Built-in Plex collections

All three types can be:

  • Ordered together in any arrangement
  • Shown/hidden independently
  • Managed from a single interface in Agregarr

This gives you complete control over how users experience your Plex library.