protected function filterViewChildrenByViewColumn(array $viewChildren, int $viewColumn) {
    $result = [];

    if ($viewChildren) {
      foreach($viewChildren as $viewChild) {
        if (intval($viewChild['tx_gridelements_columns']) == $viewColumn) {
          $result[] = $viewChild;
        }
      }
    }

    return $result;
  }