newsupernova/vendor/magento/module-inventory-distance-based-source-selection-admin-ui/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="cataloginventory">
            <group id="source_selection_distance_based" translate="label" type="text" sortOrder="600" showInDefault="1"
                   showInWebsite="1" showInStore="1">
                <label>Distance Provider for Distance Based SSA</label>
                <field id="provider" translate="label" type="select" sortOrder="10" showInDefault="1" showInWebsite="0"
                       showInStore="0" canRestore="1">
                    <label>Provider</label>
                    <source_model>Magento\InventoryDistanceBasedSourceSelectionAdminUi\Model\Config\Source\DistanceProvider</source_model>
                </field>
            </group>
            <group id="source_selection_distance_based_google" translate="label" type="text" sortOrder="650" showInDefault="1"
                   showInWebsite="1" showInStore="1">
                <label>Google Distance Provider</label>
                <field id="api_key" translate="label" type="password" sortOrder="10" showInDefault="1" showInWebsite="0"
                       showInStore="0">
                    <label>Google API key</label>
                    <comment>Geocoding API and Distance Matrix API must enabled in your Google API key to support this feature.</comment>
                </field>
                <field id="mode" translate="label" type="select" sortOrder="20" showInDefault="1" showInWebsite="0"
                       showInStore="0" canRestore="1">
                    <source_model>Magento\InventoryDistanceBasedSourceSelectionAdminUi\Model\Config\Source\GoogleDistanceProvider\Mode</source_model>
                    <label>Computation mode</label>
                </field>
                <field id="value" translate="label" type="select" sortOrder="30" showInDefault="1" showInWebsite="0"
                       showInStore="0" canRestore="1">
                    <source_model>Magento\InventoryDistanceBasedSourceSelectionAdminUi\Model\Config\Source\GoogleDistanceProvider\Value</source_model>
                    <label>Value</label>
                </field>
                <!-- TODO: Add avoids and traffic models: https://developers.google.com/maps/documentation/distance-matrix/intro#travel_modes -->
            </group>
        </section>
    </system>
</config>