# Subtitle Language Default Metadata File
The `- pmm: subtitle_language` Metadata File is used to dynamically create collections based on the subtitle languages available in your library.
Example Collections Created:
![](../images/subtitle_language.png)
The below YAML in your config.yml will create the collections:
```yaml
libraries:
Movies:
metadata_path:
- pmm: subtitle_language
```
## Template Variables
Template Variables can be used to manipulate the file from the default settings which are provided.
Note that the `templates_variables:` section only needs to be used if you do NOT want to use the default settings.
All [Shared Variables](../variables) are available as well as the additional Variables below which can be used to customize the file.
| Variable | Description & Values |
|:-----------------|:--------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `sort_by` | **Description:** Controls the sort method for the collections
**Values:** Any sort method in the [Sorts Options Table](#sort-options) |
| `include` | **Description:** Overrides the default include list
**Values:** Any list of [two-digit ISO 639-1 codes](https://en.wikipedia.org/wiki/List_of_ISO_639-1_codes) |
| `exclude` | **Description:** Overrides the default exclude list
**Values:** Any list of [two-digit ISO 639-1 codes](https://en.wikipedia.org/wiki/List_of_ISO_639-1_codes) |
| `append_include` | **Description:** Appends to the existing include list
**Values:** Any list of [two-digit ISO 639-1 codes](https://en.wikipedia.org/wiki/List_of_ISO_639-1_codes) |
| `append_exclude` | **Description:** Appends to the existing exclude list
**Values:** Any list of [two-digit ISO 639-1 codes](https://en.wikipedia.org/wiki/List_of_ISO_639-1_codes) |
The below shows an example config.yml with all the template_variables set away from their defaults:
```yaml
libraries:
Movies:
metadata_path:
- pmm: subtitle_language
template_variables:
exclude:
- fr # Exclude French
sort_by: title.asc
collection_section: 20
collection_mode: show_items
use_other: false
use_separator: false
sep_style: purple
```