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="web">
            <group id="default">
                <field id="cms_home_page" translate="label" type="select" sortOrder="1" showInDefault="1" showInWebsite="1" showInStore="1" canRestore="1">
                    <label>CMS Home Page</label>
                    <source_model>Magento\Cms\Model\Config\Source\Page</source_model>
                </field>
                <field id="cms_no_route" translate="label" type="select" sortOrder="2" showInDefault="1" showInWebsite="1" showInStore="1" canRestore="1">
                    <label>CMS No Route Page</label>
                    <source_model>Magento\Cms\Model\Config\Source\Page</source_model>
                </field>
                <field id="cms_no_cookies" translate="label" type="select" sortOrder="3" showInDefault="1" showInWebsite="1" showInStore="1" canRestore="1">
                    <label>CMS No Cookies Page</label>
                    <source_model>Magento\Cms\Model\Config\Source\Page</source_model>
                </field>
                <field id="show_cms_breadcrumbs" translate="label" type="select" sortOrder="5" showInDefault="1" showInWebsite="1" showInStore="1" canRestore="1">
                    <label>Show Breadcrumbs for CMS Pages</label>
                    <source_model>Magento\Config\Model\Config\Source\Yesno</source_model>
                </field>
            </group>
            <group id="browser_capabilities" translate="label" type="text" sortOrder="200" showInDefault="1" showInWebsite="1" showInStore="1">
                <label>Browser Capabilities Detection</label>
                <field id="cookies" translate="label" type="select" sortOrder="100" showInDefault="1" showInWebsite="1" showInStore="1" canRestore="1">
                    <label>Redirect to CMS-page if Cookies are Disabled</label>
                    <source_model>Magento\Config\Model\Config\Source\Yesno</source_model>
                </field>
                <field id="javascript" translate="label" type="select" sortOrder="200" showInDefault="1" showInWebsite="1" showInStore="1" canRestore="1">
                    <label>Show Notice if JavaScript is Disabled</label>
                    <source_model>Magento\Config\Model\Config\Source\Yesno</source_model>
                </field>
                <field id="local_storage" translate="label" type="select" sortOrder="300" showInDefault="1" showInWebsite="1" showInStore="1" canRestore="1">
                    <label>Show Notice if Local Storage is Disabled</label>
                    <source_model>Magento\Config\Model\Config\Source\Yesno</source_model>
                </field>
            </group>
            <group id="default_layouts">
                <field id="default_cms_layout" translate="label" type="select" sortOrder="30" showInDefault="1">
                    <label>Default Page Layout</label>
                    <source_model>Magento\Cms\Model\Page\Source\PageLayout</source_model>
                </field>
            </group>
        </section>
        <section id="cms" translate="label" type="text" sortOrder="1001" showInDefault="1" showInWebsite="1" showInStore="1">
            <label>Content Management</label>
            <tab>general</tab>
            <resource>Magento_Cms::config_cms</resource>
            <group id="wysiwyg" translate="label" type="text" sortOrder="100" showInDefault="1" showInWebsite="1" showInStore="1">
                <label>WYSIWYG Options</label>
                <field id="enabled" translate="label" type="select" sortOrder="1" showInDefault="1" showInWebsite="1" showInStore="1" canRestore="1">
                    <label>Enable WYSIWYG Editor</label>
                    <source_model>Magento\Cms\Model\Config\Source\Wysiwyg\Enabled</source_model>
                </field>
                <field id="editor" translate="label" type="select" sortOrder="2" showInDefault="1" showInWebsite="1" canRestore="1">
                    <label>WYSIWYG Editor</label>
                    <source_model>Magento\Cms\Model\Config\Source\Wysiwyg\Editor</source_model>
                    <depends>
                        <field id="enabled" negative="1">disabled</field>
                    </depends>
                </field>
            </group>
        </section>
    </system>
</config>