@Wire
private Spreadsheet ss;
public void doAfterCompose(Window comp) throws Exception {
	super.doAfterCompose(comp);
	ss.setCtrlKeys(ss.getCtrlKeys() + "^n");
}
@Listen("onCtrlKey=#ss")
public void shortCut(KeyEvent event) {
	if (event.isCtrlKey()) {
		int keyCode = event.getKeyCode();
		if (keyCode == 78) //s = 78
			System.out.println("ctrl + n pressed");
	}
}