pp_cms/webApp/backend/views/setting/custom-update.php

<?php
/**
 * Author: lf
 * Blog: https://blog.feehi.com
 * Email: job@feehi.com
 * Created at: 2018-09-16 21:19
 */
/**
 * @var $model common\models\Options
 */
?>
<?= $this->render("_form_custom", [
    'model' => $model,
])?>