magento-test/app/code/Magento/GoogleOptimizer/etc/adminhtml/system.xml

<?xml version="1.0"?>
<!--
/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */
-->
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Config:etc/system_file.xsd">
    <system>
        <section id="google">
            <group id="analytics">
                <field id="experiments" translate="label" type="select" sortOrder="30" showInDefault="1" showInWebsite="1" showInStore="1">
                    <label>Enable Content Experiments</label>
                    <source_model>Magento\Config\Model\Config\Source\Yesno</source_model>
                    <depends>
                        <field id="*/*/active">1</field>
                    </depends>
                </field>
            </group>
            <group id="gtag">
                <group id="analytics4">
                    <field id="experiments" translate="label" type="select" sortOrder="30" showInDefault="1" showInWebsite="1" showInStore="1">
                        <label>Enable Content Experiments</label>
                        <source_model>Magento\Config\Model\Config\Source\Yesno</source_model>
                        <depends>
                            <field id="*/*/*/active">1</field>
                        </depends>
                    </field>
                </group>
            </group>
        </section>
    </system>
</config>