# Parameter Type location | Mesh locations

> Create custom input controls for component parameters or entry fields.

Source: https://docs.uniform.app/docs/integrations/mesh-integrations/locations/parameter-type

The **Parameter Type** location allows you to provide custom input controls for component parameters or entry fields.

This location is rendered in the property panel when a component parameter includes a parameter type that is defined in the integration manifest.

![Custom input controls from the Design Extensions integration.](https://docs.uniform.app/images/integrations/mesh-integrations/location-parameter-type.png)

## Manifest configuration

```json
{
  "locations": {
    "canvas": {
      "parameterTypes": [
        {
          "type": "parameter-type-id",
          "editorUrl": "/parameter-type",
          "displayName": "Parameter type name",
          "configureUrl": "/parameter-type-config",
          "renderableInPropertyPanel": true,
          "allowedPlacement": ["parameter"]
        }
      ]
    }
  }
}
```

> **Enabling custom parameters for content type fields:**
>
> By default, custom parameters are only available for components. To enable them for content type fields, you need to set the following in the manifest configuration of the parameter type:
>
> ```json
> "allowedPlacement": ["parameter", "field"]
> ```

## Location metadata

The `metadata` object on a Parameter Type location includes:

| API | Description |
| --- | --- |
| `metadata.componentDefinitions` | Component definitions index keyed by public ID |
| `metadata.parameterDefinition` | Schema definition of the current parameter |
| `metadata.parameterConfiguration` | User-configured settings for the parameter type |
| `metadata.component` | Current component instance (without slots) |
| `metadata.rootNode` | Root composition node (without slots or data) |
| `metadata.targetLocale` | Locale being edited (undefined when the parameter is not localizable) |
| `metadata.currentLocale` | Locale currently selected in the editor UI |
| `metadata.dynamicInputs` | Dynamic inputs from the project map node |
| `metadata.connectedData` | Resolved dynamic data connections for the component |

## Editor state API

The Parameter Type location also exposes the `editorState` object for reading and writing the surrounding composition or entry. See the [Editor state API](https://docs.uniform.app/docs/integrations/mesh-integrations/editor-state-api) documentation for the full method reference.