magento-test/app/code/Magento/Variable/Test/Mftf/ActionGroup/CreateCustomVariableActionGroup.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="CreateCustomVariableActionGroup">
        <annotations>
            <description>Goes to the Custom Variable creation page. Fills in the Custom Variable details. PLEASE NOTE: The Custom Variable details are Hardcoded using 'customVariable'.</description>
        </annotations>

        <amOnPage url="{{AdminNewVariablePage.url}}" stepKey="goToNewCustomVarialePage"/>
        <waitForPageLoad stepKey="waitForPageLoad"/>
        <fillField selector="{{CustomVariableSection.variableCode}}" userInput="{{customVariable.code}}" stepKey="fillVariableCode"/>
        <fillField selector="{{CustomVariableSection.variableName}}" userInput="{{customVariable.name}}" stepKey="fillVariableName"/>
        <fillField selector="{{CustomVariableSection.variableHTML}}" userInput="{{customVariable.html}}" stepKey="fillVariableHtml"/>
        <fillField selector="{{CustomVariableSection.variablePlain}}" userInput="{{customVariable.plain}}" stepKey="fillVariablePlain"/>
        <click selector="{{CustomVariableSection.saveCustomVariable}}" stepKey="clickSaveVariable"/>
    </actionGroup>
</actionGroups>