> ## Documentation Index
> Fetch the complete documentation index at: https://docs.abbyy.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Additional options for purchase orders

> Additional options in the Order Document Definition let you toggle line item and tax extraction, training during processing, and document clustering.

The Order Document Definition includes some additional options which allow you to enable or disable the extraction of tax fields and line items, to use training based on operator corrections, and to use document clustering for training.

## Access the additional options

<Steps>
  <Step title="Open the Document Definition properties">
    In the Document Definition Editor, open the **Document Definition Properties...** dialog box.
  </Step>

  <Step title="Edit the Additional Fields and Features">
    On the **Document Definition Settings** tab, click the **Edit...** button to the right of the **Additional Fields and Features** group.
  </Step>
</Steps>

| Option                         | Description                                                                                                                                                        |
| ------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| **Line items extraction**      | Enables or disables extraction of line items (selected by default).                                                                                                |
| **Training during processing** | Enables training for a FlexiLayout variant. For more information, see [Training ABBYY FlexiCapture for Invoices](/flexi-capture/invoice-reader/ir-admin-training). |
| **Taxes**                      | Enables or disables extraction of taxes (not selected by default).                                                                                                 |
| **Enable clustering**          | Enables or disables document clustering for training. For more information, see [Training with clustering](/flexi-capture/ir-clustering).                          |