Simple button in Creo Session

I create a simple button in a creo session using Jlink.

public static void start() throws Exception {

  displaymessage("Started");

  try {

  session = pfcGlobal.GetProESession();

  UICommand cmd = session.UICreateCommand("JLHW Btn1_cmd",new MenuButtonListener());

  session.UIAddButton(cmd,"File", null, "JLHW Btn1 Label", "JLHW Btn1 Help", "msg_jlinkhelloworld.txt");

  }

  catch (jxthrowable x) {

x.printStackTrace();

    }

  }

It working Sucessfully.

But i want it in a single click.Now i click tools and file and D-tool.I don't wish to do this.I want it in a single button .Please help me to solve my problem.