magento-test/app/code/Magento/Shipping/Test/Mftf/ActionGroup/AdminChangeFlatRateShippingMethodStatusActionGroup.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="AdminChangeFlatRateShippingMethodStatusActionGroup">
        <arguments>
            <argument name="status" type="string" defaultValue="1"/>
        </arguments>
        <conditionalClick selector="{{AdminShippingMethodFlatRateSection.carriersFlatRateTab}}" dependentSelector="{{AdminShippingMethodFlatRateSection.carriersFlatRateActive}}" visible="false" stepKey="expandTab"/>
        <selectOption selector="{{AdminShippingMethodFlatRateSection.carriersFlatRateActive}}" userInput="{{status}}" stepKey="changeFlatRateMethodStatus"/>
        <click selector="{{AdminConfigSection.saveButton}}" stepKey="saveConfigs"/>
        <waitForPageLoad stepKey="waitForPageLoad"/>
        <see selector="{{AdminCategoryMessagesSection.SuccessMessage}}" userInput="You saved the configuration." stepKey="seeSuccessMessage"/>
    </actionGroup>
</actionGroups>