magento-test/app/code/Magento/Config/Test/Mftf/ActionGroup/ConfigAdminAccountSharingActionGroup.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="ConfigAdminAccountSharingActionGroup">
        <annotations>
            <description>Goes to the 'Configuration' page for 'Admin'. Enables 'Admin Account Sharing'. Clicks on the Save button.</description>
        </annotations>

        <amOnPage url="{{AdminConfigAdvancedAdmin.url}}" stepKey="navigateToConfigurationPage"/>
        <waitForPageLoad stepKey="wait1"/>
        <conditionalClick stepKey="expandSecurityTab" selector="{{AdminSection.SecurityTab}}" dependentSelector="{{AdminSection.CheckIfTabExpand}}" visible="true"/>
        <waitForElementVisible selector="{{AdminSection.AdminAccountSharing}}" stepKey="waitForAdminAccountSharingDrpDown"/>
        <uncheckOption selector="{{AdminSection.EnableSystemValue}}" stepKey="uncheckUseSystemValue"/>
        <selectOption selector="{{AdminSection.AdminAccountSharing}}" userInput="Yes" stepKey="selectYes"/>
        <click selector="{{AdminSection.SecurityTab}}" stepKey="clollapseSecurityTab"/>
        <click selector="{{ContentManagementSection.Save}}" stepKey="saveConfig"/>
    </actionGroup>
</actionGroups>