magento-test/app/code/Magento/MediaGalleryUi/Test/Mftf/ActionGroup/AdminMediaGalleryRenditionsEnableActionGroup.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="AdminMediaGalleryRenditionsEnableActionGroup">
        <arguments>
            <argument name="enabled" type="string" defaultValue="{{MediaGalleryRenditionsDataEnabled.value}}"/>
        </arguments>
        <amOnPage url="{{AdminMediaGalleryConfigSystemPage.url}}" stepKey="navigateToSystemConfigurationPage" />
        <waitForPageLoad stepKey="waitForPageLoad"/>
        <scrollTo selector="{{AdminConfigSystemSection.mediaGalleryRenditionsFieldset}}" stepKey="scrollToMediaGalleryRenditionsFieldset"/>
        <conditionalClick stepKey="expandMediaGalleryRenditionsTab" selector="{{AdminConfigSystemSection.mediaGalleryRenditionsFieldset}}" dependentSelector="{{AdminConfigSystemSection.mediaGalleryRenditionsEnabledField}}" visible="false" />
        <waitForElementVisible selector="{{AdminConfigSystemSection.mediaGalleryRenditionsFieldset}}" stepKey="waitForFieldset" />
        <selectOption userInput="{{enabled}}" selector="{{AdminConfigSystemSection.mediaGalleryRenditionsEnabledField}}" stepKey="enableOrDisableMediaGalleryRenditions"/>
        <click selector="{{AdminConfigSystemSection.saveConfig}}" stepKey="saveConfiguration"/>
        <waitForPageLoad stepKey="waitForConfigurationToSave"/>
    </actionGroup>
</actionGroups>