magento-test/app/code/Magento/Cms/Test/Mftf/ActionGroup/StorefrontGoToCMSPageActionGroup.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="StorefrontGoToCMSPageActionGroup">
        <annotations>
            <description>Goes to the provided Storefront CMS Page.</description>
        </annotations>
        <arguments>
            <argument name="identifier" type="string"/>
        </arguments>

        <amOnPage url="{{StorefrontHomePage.url}}/{{identifier}}" stepKey="amOnCmsPageOnStorefront"/>
        <waitForPageLoad stepKey="waitForPageLoadOnStorefront"/>
    </actionGroup>
</actionGroups>