/**
* Sets the order for all columns or column groups at the top level, or at a
* the relative top level within one group.
*
* @param string[] $orderedBaseColNames
* @param string|null $groupPrefix
*
* @return $this
* @throws \Exception
*/
function setColOrder($orderedBaseColNames, $groupPrefix = null)
{
$this->columns->setOrder($orderedBaseColNames, $groupPrefix);
return $this;
}
