magento-test/app/code/Magento/Sales/Test/Mftf/ActionGroup/AdminOrderSelectShippingMethodActionGroup.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="AdminOrderSelectShippingMethodActionGroup">
        <annotations>
            <description>Select Shipping method from admin order page.</description>
        </annotations>
        <arguments>
            <argument name="methodTitle" type="string" defaultValue="flatrate"/>
            <argument name="methodName" type="string" defaultValue="fixed"/>
        </arguments>
        <waitForElementVisible selector="{{AdminInvoicePaymentShippingSection.getShippingMethod}}" stepKey="waitForShippingMethodsOpen"/>
        <click selector="{{AdminInvoicePaymentShippingSection.getShippingMethod}}" stepKey="openShippingMethod"/>
        <conditionalClick selector="{{AdminInvoicePaymentShippingSection.getShippingMethod}}" dependentSelector="{{AdminInvoicePaymentShippingSection.fixedPriceShippingMethod(methodTitle, methodName)}}" visible="false" stepKey="openShippingMethodSecondTime"/>
        <waitForElementVisible selector="{{AdminInvoicePaymentShippingSection.fixedPriceShippingMethod(methodName, methodTitle)}}" stepKey="waitForShippingMethod"/>
        <click selector="{{AdminInvoicePaymentShippingSection.fixedPriceShippingMethod(methodName, methodTitle)}}" stepKey="chooseShippingMethod"/>
        <waitForPageLoad stepKey="waitForPageToLoad"/>
    </actionGroup>
</actionGroups>