magento-test/app/code/Magento/Tax/Test/Mftf/ActionGroup/AdminCreateTaxRuleWithTwoTaxRatesActionGroup.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="AdminCreateTaxRuleWithTwoTaxRatesActionGroup" extends="AdminCreateTaxRuleActionGroup">
        <arguments>
            <argument name="taxRate2"/>
        </arguments>
        <click selector="{{AdminTaxRulesSection.selectTaxRate(taxRate2.code)}}" stepKey="selectTaxRate2" after="selectTaxRate"/>
    </actionGroup>
</actionGroups>