magento-test/app/code/Magento/Wishlist/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="wishlist" translate="label" type="text" sortOrder="140" showInDefault="1" showInWebsite="1" showInStore="1">
            <label>Wish List</label>
            <tab>customer</tab>
            <resource>Magento_Wishlist::config_wishlist</resource>
            <group id="email" translate="label" type="text" sortOrder="2" showInDefault="1" showInWebsite="1" showInStore="1">
                <label>Share Options</label>
                <depends>
                    <field id="*/general/active">1</field>
                </depends>
                <field id="email_identity" translate="label" type="select" sortOrder="1" showInDefault="1" showInWebsite="1" showInStore="1" canRestore="1">
                    <label>Email Sender</label>
                    <source_model>Magento\Config\Model\Config\Source\Email\Identity</source_model>
                </field>
                <field id="email_template" translate="label comment" type="select" sortOrder="1" showInDefault="1" showInWebsite="1" showInStore="1" canRestore="1">
                    <label>Email Template</label>
                    <comment>Email template chosen based on theme fallback when "Default" option is selected.</comment>
                    <source_model>Magento\Config\Model\Config\Source\Email\Template</source_model>
                </field>
                <field id="number_limit" translate="label comment" type="text" sortOrder="3" showInDefault="1" showInWebsite="1" showInStore="1" canRestore="1">
                    <label>Max Emails Allowed to be Sent</label>
                    <comment>10 by default. Max - 10000</comment>
                    <validate>validate-digits validate-digits-range digits-range-1-10000</validate>
                </field>
                <field id="text_limit" translate="label comment" type="text" sortOrder="4" showInDefault="1" showInWebsite="1" showInStore="1" canRestore="1">
                    <label>Email Text Length Limit</label>
                    <comment>255 by default. Max - 10000</comment>
                    <validate>validate-digits validate-digits-range digits-range-1-10000</validate>
                </field>
            </group>
            <group id="general" translate="label" type="text" sortOrder="1" showInDefault="1" showInWebsite="1" showInStore="1">
                <label>General Options</label>
                <field id="active" translate="label" type="select" sortOrder="1" showInDefault="1" showInWebsite="1" showInStore="1" canRestore="1">
                    <label>Enabled</label>
                    <source_model>Magento\Config\Model\Config\Source\Yesno</source_model>
                </field>
                <field id="show_in_sidebar" translate="label" type="select" sortOrder="5" showInDefault="1" showInWebsite="1" showInStore="1" canRestore="1">
                    <label>Show in Sidebar</label>
                    <source_model>Magento\Config\Model\Config\Source\Yesno</source_model>
                    <depends>
                        <field id="active">1</field>
                    </depends>
                </field>
            </group>
            <group id="wishlist_link" translate="label" sortOrder="3" showInDefault="1" showInWebsite="1">
                <label>My Wish List Link</label>
                <depends>
                    <field id="*/general/active">1</field>
                </depends>
                <field id="use_qty" translate="label" type="select" sortOrder="1" showInDefault="1" showInWebsite="1" canRestore="1">
                    <label>Display Wish List Summary</label>
                    <source_model>Magento\Wishlist\Model\Config\Source\Summary</source_model>
                </field>
            </group>
        </section>
        <section id="rss">
            <group id="wishlist" translate="label" type="text" sortOrder="2" showInDefault="1" showInWebsite="1" showInStore="1">
                <label>Wish List</label>
                <field id="active" translate="label" type="select" sortOrder="10" showInDefault="1" showInWebsite="1" showInStore="1">
                    <label>Enable RSS</label>
                    <source_model>Magento\Config\Model\Config\Source\Enabledisable</source_model>
                </field>
            </group>
        </section>
    </system>
</config>