Drupal → Прячем настройки ноды в раскрывающийся fieldset

/**
 * Implements hook_form_alter()
 */
function mymodule_form_alter(&$form, &$form_state, $form_id) {
  if (isset($form['type']) && isset($form['#node']) && $form_id == $form['type']['#value'] .'_node_form') {
    $form['#after_build'][] = '_mymodule_hide_fieldsets';
  }
}
 
/**
 * After build callback
 */
function _mymodule_hide_fieldsets($form, &$form_state) {
  $fieldsets = array('menu', 'revision_information', 'comment_settings', 'path', 'options', 'author');
 
  $form['node_settings'] = array(
    '#type' => 'fieldset',
    '#title' => t('Settings'),
    '#collapsible' => TRUE,
    '#collapsed' => TRUE,
    '#weight' => 10,
  );
 
  foreach ($fieldsets as $name) {
    $form['node_settings'][$name] = $form[$name];
    unset($form[$name]);
  }
 
  return $form;
}