magento-test/app/code/Magento/Cms/Test/Mftf/ActionGroup/AdminEditCMSPageContentActionGroup.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="AdminEditCMSPageContentActionGroup">
        <arguments>
            <argument name="content" type="string"/>
            <argument name="pageId" type="string"/>
        </arguments>

        <amOnPage url="{{AdminCmsPageEditPage.url(pageId)}}" stepKey="navigateToEditCMSPage"/>
        <waitForPageLoad stepKey="waitForCmsPageEditPage"/>
        <conditionalClick selector="{{CmsNewPagePageContentSection.header}}" dependentSelector="{{CmsNewPagePageContentSection.contentHeading}}" visible="false" stepKey="expandContentTab"/>
        <waitForPageLoad time="30" stepKey="waitForPageLoadContentSection"/>
        <conditionalClick selector="{{CmsNewPagePageActionsSection.showHideEditor}}" dependentSelector="{{CatalogWidgetSection.insertWidgetButton}}" visible="false" stepKey="clickNextShowHideEditorIfVisible"/>
        <waitForElementVisible selector="{{CmsNewPagePageContentSection.content}}" stepKey="waitForContentField"/>
        <fillField selector="{{CmsNewPagePageContentSection.content}}" userInput="{{content}}" stepKey="resetCMSPageToDefaultContent"/>
        <click selector="{{CmsNewPagePageActionsSection.saveAndContinueEdit}}" stepKey="clickSave"/>
        <waitForPageLoad stepKey="waitForSettingsApply"/>
    </actionGroup>
</actionGroups>