magento-test/app/code/Magento/Ui/Test/Mftf/Section/AdminGridControlsSection/AdminGridColumnsControlsSection.xml

<?xml version="1.0" encoding="UTF-8"?>
<!--
 /**
  * Copyright © Magento, Inc. All rights reserved.
  * See COPYING.txt for license details.
  */
-->
<sections xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:noNamespaceSchemaLocation="urn:magento:mftf:Page/etc/SectionObject.xsd">
    <section name="AdminGridColumnsControls">
        <element name="columns" type="button" selector=".admin__data-grid-header[data-bind='afterRender: \$data.setToolbarNode'] .admin__data-grid-action-columns" timeout="5"/>

        <element name="columnName" type="button" selector="//label[contains(text(), '{{var1}}')]" parameterized="true" timeout="5"/>

        <element name="reset" type="button" selector="//div[@class='admin__action-dropdown-menu-footer']/div/button[contains(text(), 'Reset')]" timeout="5"/>
        <element name="cancel" type="button" selector="//div[@class='admin__action-dropdown-menu-footer']/div/button[contains(text(), 'Cancel')]" timeout="5"/>
    </section>
</sections>