magento-test/app/code/Magento/Sales/Test/Mftf/ActionGroup/AdminStartReorderFromOrderPageActionGroup.xml

<?xml version="1.0" encoding="UTF-8"?>
<!--
 /**
  * Copyright © Magento, Inc. All rights reserved.
  * See COPYING.txt for license details.
  */
-->
<actionGroups xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
              xsi:noNamespaceSchemaLocation="urn:magento:mftf:Test/etc/actionGroupSchema.xsd">
    <actionGroup name="AdminStartReorderFromOrderPageActionGroup">
        <annotations>
            <description>Reorder existing order. Requires admin order page to be opened.</description>
        </annotations>

        <click selector="{{AdminOrderDetailsMainActionsSection.reorder}}" stepKey="clickReorder"/>
        <waitForPageLoad stepKey="waitPageLoad"/>
        <waitForElementVisible selector="{{AdminHeaderSection.pageTitle}}" stepKey="waitForPageTitle"/>
        <see selector="{{AdminHeaderSection.pageTitle}}" userInput="Create New Order" stepKey="seeCreateNewOrderPageTitle"/>
    </actionGroup>
</actionGroups>