Implements hook_forms().
function system_forms() {
$forms = array();
foreach (drupal_container()
->get('plugin.manager.system.plugin_ui')
->getDefinitions() as $plugin_id => $plugin) {
if (empty($forms[$plugin['id']])) {
$forms[$plugin['id']]['callback'] = 'system_plugin_ui_form';
}
}
return $forms;
}