AdminManageSourcesPage.xml

<?xml version="1.0" encoding="UTF-8"?>
<!--
 /**
  * Copyright © Magento, Inc. All rights reserved.
  * See COPYING.txt for license details.
  */
-->

<pages xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:noNamespaceSchemaLocation="urn:magento:mftf:Page/etc/PageObject.xsd">
    <page name="AdminManageSourcePage" url="/inventory/source/index/" area="admin" module="Magento_Inventory">
        <section name="AdminAssignSourcesSlideOutSection"/>
        <section name="AdminAssignSourcesSlideOutGridSection"/>
        <section name="AdminEditSourceGeneralSection"/>
        <section name="AdminEditSourceContactInfoSection"/>
        <section name="AdminEditSourceAddressDataSection"/>
        <section name="AdminEditSourceCarriersSection"/>
        <section name="AdminManageSourcesGridBody"/>
        <section name="AdminManageSourcesGridControls"/>
        <section name="AdminManageSourcesGridFilterControls"/>
        <section name="AdminManageSourcesGridColumnControls"/>
        <section name="AdminProductSourcesSection"/>
        <section name="AdminProductSourcesGrid"/>
        <section name="AdminManageSourcesGridMassAction"/>
    </page>
</pages>