public void actionPerformed(ActionEvent e) {
		Grammar g = environment.getGrammar(UnrestrictedGrammar.class);
		if (g == null)
			return;
		BruteParsePane bpp = new BruteParsePane(environment, g, null);
		environment.add(bpp, "Brute Parser", new CriticalTag() {
		});
		environment.setActive(bpp);
	}