>>> [!note] Migrated issue <!-- Drupal.org comment --> <!-- Migrated from issue #3587241. --> Reported by: [liam morland](https://www.drupal.org/user/493050) Related to !177 >>> <h3 id="summary-problem-motivation">Problem/Motivation</h3> <p>The <code>book_navigation_without_tree</code> field does not appear in the position configured on "Manage display". This is because it is put into <code>$build['book_navigation']</code> instead of <code>$build['book_navigation_without_tree']</code>.</p> <h3 id="summary-proposed-resolution">Proposed resolution</h3> <p>Use the correct key.</p> <h3 id="summary-remaining-tasks">Remaining tasks</h3> <p>Implement.</p> <h3 id="summary-ui-changes">User interface changes</h3> <p>None, except that the field appears in the correct location.</p> <h3 id="summary-api-changes">API changes</h3> <p>None.</p> <h3 id="summary-data-model-changes">Data model changes</h3> <p>None.</p>