magento-test/app/code/Magento/Sales/Test/Mftf/ActionGroup/AdminResetColumnDropDownActionGroup.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="AdminResetColumnDropDownActionGroup">
        <annotations>
            <description>Reset the column dropdown ot its original state on the Orders grid page.</description>
        </annotations>
        <!-- Resetting column checkbox -->
        <click selector="{{AdminOrdersGridSection.columnsDropdown}}" stepKey="openColumnsDropdown"/>
        <click selector="{{AdminOrdersGridSection.resetColumnCheckbox}}" stepKey="resetColumnCheckbox"/>
        <click selector="{{AdminOrdersGridSection.columnsDropdown}}" stepKey="closeColumnsDropdown" />
    </actionGroup>
</actionGroups>