public function setParameter(String $key, $value, Bool $override=false)
	{
		if ($this->getParameter($key)) {
			$defValue = $this->getParameter($key);
			$this->parameters[$key] = [$defValue];
			$this->parameters[$key][] = $value;
			return;
		}

		$this->parameters[$key] = $value;
	}