<? if ( is_array( $this -> custom_fields ) ): foreach ( $this -> custom_fields as $custom_field ):?>
  <div class="custom-field">
    <div class="_name">
      <?= $custom_field['name'];?>:
    </div>
    <div class="_input">
      <div class="grow-wrap">
        <textarea name="custom_field[<?= $custom_field['id_additional_field'];?>]" field_name="<?= $custom_field['name'];?>" onInput="this.parentNode.dataset.replicatedValue = this.value"></textarea>
      </div>
    </div>
  </div>
<? endforeach; endif;?>