LWUIT move all commands from the form to the "slide context menu" - java-me

Question

I am trying to make a calculator for nokia 501 asha and i want all my buttons to fit on the the screen so that i don't have to scroll the form to access all buttons.
Apparently adding commands like exit,about and help are mandatory to your app.
Now when i add these commands one of the commands appear as a button and occupy a lot of screen space which i don't want.
I want my commands to appear like this i.e all commands on the slide context menu.
But instead there's an unnecessary button on the screen.
The code that i have used to add commands is as follows:
Form a = new Form("form");
a.addCommand(new Command("exit"),0);
a.addCommand(new Command("HELP"),1);
a.addCommand(new Command("ABOUT"),2);
a.setEnabled(true);
a.show();
So, what modifications i need to make in that code so that all my commands appear on the slide context menu ?

Answer 1

I am looking the Asha UI Component Demos, in the Menu section, options menu. I find this code to add the Commands:
// The rest appear in menu
Command menuCommand1 = new Command("Command 2", Command.SCREEN, 1);
addCommand(menuCommand1);
Command menuCommand2 = new Command("Command 3", Command.SCREEN, 2);
addCommand(menuCommand2);
Command menuCommand3 = new Command("Command 4", Command.SCREEN, 3);
addCommand(menuCommand3);
Try to put this Command.SCREEN parameter.

Answer 2

This answer will help to someone. The following code is working in 501.
protected void startApp() throws MIDletStateChangeException {
// TODO Auto-generated method stub
Display.init(this);
// For hide the form title bar. It is working in Nokia asha 501.
Display.getInstance().setForceFullScreen(true);
Display.setObjectTrait(Display.getInstance().getImplementation(), "nokia.ui.canvas.status_zone", Boolean.TRUE);
Form a = new Form("form");
a.addCommand(new Command("exit"),0);
a.addCommand(new Command("HELP"),1);
a.addCommand(new Command("ABOUT"),2);
a.setEnabled(true);
a.show();
}