## Enable/disable documents/sets for a specific page type
If you don't need documents/document sets for a specific page type you can disable this with YAML configuration:
```yaml
MyPageType:
documents_enabled: false
```
Likewise, you could override a previously set configuration value by setting this back to `true` in a configuration
file with a higher precedence.
## Allowed extensions for DMS documents
By default the allowed extensions for DMS documents will come from the UploadField's allowed extesions list, and will
have a customised list of extensions for DMS merged in. The base `allowed_extensions` is a site-wide configuration
setting. [See here for information](https://docs.silverstripe.org/en/3/developer_guides/forms/field_types/uploadfield/#limit-the-allowed-filetypes) on changing this.
To add extra allowed file extensions purely for DMS documents, you can update the YAML configuration property:
Query builder fields are read from the DMSDocument::searchable_fields property set in [querybuilder.yml](../../_config/querybuilder.yml). Some default fields are provided and can be customised
by modifying the field and/or filter properties of a field or adding a new field entirely.
[See here for information](https://docs.silverstripe.org/en/developer_guides/model/searchfilters/) on how to modify search filters and [see here for more information](https://docs.silverstripe.org/en/developer_guides/forms/field_types/common_subclasses/)
on the field types available.
The default searchable filters available to query builder is as follows:
