magento-test/app/code/Magento/Customer/Test/Mftf/ActionGroup/AdminUpdateCustomerGenderInCustomersGridActionGroup.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="AdminUpdateCustomerGenderInCustomersGridActionGroup">
        <annotations>
            <description>Update customer gender attribute value on customers grid page</description>
        </annotations>
        <arguments>
            <argument name="customerEmail" defaultValue="{{Simple_US_Customer.email}}" type="string"/>
            <argument name="genderValue" defaultValue="{{Gender.empty}}" type="string"/>
        </arguments>

        <click selector="{{AdminDataGridTableSection.rowTemplate(customerEmail)}}" stepKey="clickCustomersGridRow"/>
        <waitForElementVisible selector="{{AdminCustomerGridInlineEditorSection.customerGenderEditor}}" stepKey="waitForGenderElementAppears"/>
        <selectOption userInput="{{genderValue}}" selector="{{AdminCustomerGridInlineEditorSection.customerGenderEditor}}" stepKey="selectGenderValue"/>
        <click selector="{{AdminCustomerGridInlineEditorSection.saveInGrid}}" stepKey="saveCustomer"/>
    </actionGroup>
</actionGroups>