<page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd">
    <body>
        <referenceBlock name="order_info">
            <block class="Magento\Sales\Block\Adminhtml\Order\AbstractOrder"
                   name="dofalcon_adminupdates_order_info_order_id"
                   template="DOFalcon_AdminUpdates::sales/order/view/order-information/order_id.phtml"
            />
        </referenceBlock>

        <referenceBlock name="order_items">
            <arguments>
                <argument name="columns" xsi:type="array">
                    <item name="item_id" xsi:type="string" translate="true">Internal Order Item Id</item>
                </argument>
            </arguments>
            <referenceBlock name="default_order_items_renderer">
                <arguments>
                    <argument name="columns" xsi:type="array">
                        <item name="item_id" xsi:type="string" translate="true">col-item-id</item>
                    </argument>
                </arguments>
            </referenceBlock>
            <!-- name very specific, has to be "column" + name -->
            <block class="Magento\Sales\Block\Adminhtml\Items\Column\DefaultColumn"
                   name="column_item_id"
                   template="DOFalcon_AdminUpdates::sales/order/view/items/column/item_id.phtml"
                   group="column"
            />
        </referenceBlock>
    </body>
</page>
