CWizardStep::SetDisplayVars

function SetDisplayVars($arVars)
{
	if (!is_array($arVars))
		return;

	$wizard = $this->GetWizard();
	foreach ($arVars as $varName)
	{
		$varName = str_replace("[]", "", $varName);
		if (!in_array($varName, $this->displayVars))
			$this->displayVars[] = $varName;
	}
}