Within the [Configuration File](configuration.md), the `libraries` attribute specifies the Plex libraries that the user wants Plex Meta Manager to act on.
Attributes are used to instruct Plex Meta Manager what actions to take, such as "load the following libraries" or "execute the following Collection Definition files". These attributes can be specified individually per library, or can be inherited from the global value if it has been set. If an attribute is specified at both the library and global level, then the library level attribute will take priority.
This example is an advanced version of the library mappings which highlights some attributes being set at the global level, and some being set at the library level:
In this example, the `"TV Shows On Second Plex"` library has a library-level `plex` configuration, which takes priority over the `plex` configuration set at the global level.
The `"Anime"` library also has a library-level `radarr` configuration, which takes priority over the `radarr` configuration set at the global level.
| [`library_name`](#library-name) | Used to specify the Library's name.<br>*required only when trying to use multiple libraries with the same name.*<br>**Values:** Library Name<br>**Default:** Base Attribute Name |
| [`collection_files`](#collection-file) | Used to define [Collection Files](data/collections.md).<br>**Values:** Location of Collection YAML files.<br>**Default:** `/config/<<MAPPING_NAME>>.yml` |
| [`metadata_files`](#metadata-file) | Used to define [Metadata Files](data/collections.md).<br>**Values:** Location of Metadata YAML files. |
| [`overlay_files`](#overlay-file) | Used to define [Overlay Files](data/overlays.md) .<br>**Values:** Location of Overlay YAML files. |
| [`report_path`](#report-path) | Location to create the YAML file listing added, removed, filtered, and missing items for this library.<br>**Values:** Location of the report file.<br>**Default:** `/config/<<MAPPING_NAME>>_report.yml` |
| [`template_variables`](#library-template-variables) | Library template variables to be applied to every Collection, Metadata, and Overlay file run.<br>**Values:** Values are specified by each particular file. |
| [`schedule`](../builders/details/schedule.md) | Used to schedule when this library is run.<br>**Values:** Any [schedule option](../builders/details/schedule.md)<br>**Default:** `daily` |
| [`operations`](operations.md) | Used to specify Library Operations to run.<br>**Values:** Any [Library Operation](operations.md) |
| [`settings`](settings.md) | Used to override global `setting` values for this library only.<br>**Values:** Any `setting` attribute that overrides a global value.<br>**Default:** global value |
| [`plex`](plex.md) | Used to override global `plex` values for this library only. **`plex` Attribute is required either here or globally**<br>**Values:** Any `plex` attribute that overrides a global value.<br>**Default:** global value |
| [`radarr`](radarr.md) | Used to override global `radarr` values for this library only.<br>**Values:** Any `radarr` attribute that overrides a global value.<br>**Default:** global value |
| [`sonarr`](sonarr.md) | Used to override global `sonarr` values for this library only.<br>**Values:** Any `sonarr` attribute that overrides a global value.<br>**Default:** global value |
| [`tautulli`](tautulli.md) | Used to override global `tautulli` values for this library only.<br>**Values:** Any `tautulli` attribute that overrides a global value.<br>**Default:** global value |
Each library that the user wants Plex Meta Manager to interact with must be documented with a library attribute. A library attribute is represented by the mapping name (i.e. `Movies` or `TV Shows`), this must have a unique name that correlates with a library of the same name within the Plex Media Server. In the situation that two servers are being connected to which both have libraries of the same name, the `library_name` attribute can be utilized to specify the real Library Name, whilst the library attribute's mapping name can be made into a placeholder. This is showcased below:
* In this example, `"Movies01"`, `"TV Shows"`, and `"Anime"` will all use the global plex server (**http://192.168.1.12:32400**) which is defined using the global `plex` mapping. `"Movies02"` will use the plex server **http://192.168.1.35:32400** which is defined under its `plex` mapping over the global mapping.
The `collection_files` attribute is used to define [Collection Files](data/collections.md) by specifying the path type and path of the files that will be executed against the parent library. See [Path Types](../builders/files.md#paths) for how to define them.
By default, when `collection_files` is missing Plex Meta Manager will look within the root PMM directory for a collection file called `<MAPPING_NAME>.yml`. In this example, Plex Meta Manager will look for a file named `TV Shows.yml`.
The `metadata_files` attribute is used to define Metadata Files by specifying the path of the files that will be executed against the parent library. See [Path Types](../builders/files.md#paths) for how to define them.
???+ tip
As of Plex Meta Manager 1.20.0 "Metadata Files" refers to YAML files which refers to managing the metadata of items [movies, shows, music] within your library, and "Collection Files" refers to YAML files which define Collections.
In previous version of Plex Meta Manager, "Metadata Files" could mean either of the above.
The `overlay_files` attribute is used to define [Overlay Files](data/overlays.md) by specifying the path type and path of the files that will be executed against the parent library. See [Path Types](../builders/files.md#paths) for how to define them.
This will remove all overlays from your library, but will not delete the overlaid images from your system, resulting in [image bloat](../pmm/essentials/scripts/image-cleanup.md).
You can reapply overlays from a library by adding `reapply_overlays: true` to `overlay_files`. This will reapply overlays to every item in your library.
This will reapply all overlays on each run until this attribute is set to `false`, which will result in [image bloat](../pmm/essentials/scripts/image-cleanup.md).
You can reset overlays from a library by adding `reset_overlays` to `overlay_files` and setting it to either `tmdb` or `plex` depending on where you want to source the images from. This will use the reset image when overlaying items in your library.
This will reset all posters to the desired source on each run until this attribute is set to `false`, and will reapply all overlays on each run, which will result in [image bloat](../pmm/essentials/scripts/image-cleanup.md).
You can schedule all overlays from a library by adding `schedule` to `overlay_files` and setting it to [Any Schedule Option](../builders/details/schedule.md).
The `report_path` attribute is used to define where to save the YAML Report file. This file is used to store information about what media is added, removed, filtered, and missing from the Plex library compared to what is expected from the Metadata file.
If your Metadata file creates a collection with `Movie 1`, `Movie 2` and `Movie 3` but your Plex library only has `Movie 1` and `Movie 3`, then the missing YAML file will be updated to inform the user that `Movie 2` was missing from the library.
The default and recommended path is `/config/<<MAPPING_NAME>>report.yml` where `<<MAPPING_NAME>>` is the name of the library attribute, as showcased below:
