Try to have more than one window

package ;

import openfl.events.Event;
import brocchinia.display.DisplayObject;
import lime.ui.GamepadButton;
import lime.ui.GamepadAxis;
import lime.ui.Gamepad;
import lime.app.Application;
import lime.graphics.RenderContext;
import lime.app.Config;
import openfl.display.Stage;
import lime.ui.Window;
import openfl.display.Graphics;
import openfl.Lib;
import lime.ui.KeyCode;
import lime.ui.KeyModifier;

typedef LimeEvent<T> = lime.app.Event<T>;

class PersoWindow extends Window {

}

class Main extends Stage {
    public static var allId:UInt=0;
    public var id:UInt;

    public var background(get,never):Graphics;
    @:noCompletion private function get_background ():Graphics {
        if (__graphics == null) {
            __graphics = new Graphics ();
            @:privateAccess __graphics.__owner = this;
        }
        return __graphics;
    }

    public var foreground:Graphics;
    public var mainground:Graphics;

    public static function main() {
        Lib.application.removeModule(Lib.application.modules[0]);
        Lib.application.addModule(new Main());
        newWindow(Main,{width:Lib.application.window.width,height:Lib.application.window.height});
    }

    public static function newWindow(model:Class<Main>,config:Config) {
        var app:Application = new Application();
        app.create (config);
        var stage = Type.createInstance(model,[]);
        app.addModule (stage);
    }

    public function new() {
        super(Lib.application.window.width,Lib.application.window.height,0x545454);
        frameRate=1;
        var mainG:DisplayObject=new DisplayObject();
        var foreG:DisplayObject=new DisplayObject();
        addChild(mainG);
        addChild(foreG);
        mainground = mainG.graphics;
        foreground = foreG.graphics;
        id=allId++;
    }

    override public function onGamepadAxisMove(gamepad:Gamepad, axis:GamepadAxis, value:Float):Void {    }
    override public function onGamepadButtonDown(gamepad:Gamepad, button:GamepadButton):Void {    }
    override public function onGamepadButtonUp(gamepad:Gamepad, button:GamepadButton):Void {    }
    override public function onGamepadConnect(gamepad:Gamepad):Void {    }
    override public function onGamepadDisconnect(gamepad:Gamepad):Void {    }

    override public function onKeyDown(keyCode:KeyCode, modifier:KeyModifier):Void {  trace(id);  }
    override public function onKeyUp(keyCode:KeyCode, modifier:KeyModifier):Void {    }

    override public function onMouseDown(x:Float, y:Float, button:Int):Void {  trace(id);  }
    override public function onMouseMove(x:Float, y:Float):Void {    }
    override public function onMouseMoveRelative(x:Float, y:Float):Void {    }
    override public function onMouseUp(x:Float, y:Float, button:Int):Void {    }
    override public function onMouseWheel(deltaX:Float, deltaY:Float):Void {    }

    override public function onRenderContextLost():Void {    }
    override public function onRenderContextRestored(context:RenderContext):Void {    }

    override public function onTextEdit(text:String, start:Int, length:Int):Void {    }
    override public function onTextInput(text:String):Void {    }

    override public function onTouchMove(x:Float, y:Float, id:Int):Void {    }
    override public function onTouchEnd(x:Float, y:Float, id:Int):Void {    }
    override public function onTouchStart(x:Float, y:Float, id:Int):Void {    }

    override public function onWindowActivate():Void {    }
    override public function onWindowClose():Void {    }
    override public function onWindowDeactivate():Void {    }
    override public function onWindowEnter():Void {    }
    override public function onWindowFocusIn():Void {    }
    override public function onWindowFocusOut():Void {    }
    override public function onWindowFullscreen():Void {    }
    override public function onWindowLeave():Void {    }
    override public function onWindowMinimize():Void {    }
    override public function onWindowMove(x:Float, y:Float):Void {    }
    override public function onWindowResize(width:Int, height:Int):Void {    }
    override public function onWindowRestore():Void {    }

    override public function render(context:RenderContext):Void {
        super.render(context);
        this.foreground.beginFill(0x00FF00,1);
        this.foreground.drawRect(50,50,500,500);
        this.foreground.endFill();
        this.mainground.beginFill(0xFF0000,1);
        this.mainground.drawRect(25,25,500,500);
        this.mainground.endFill();
        this.background.beginFill(0x0000FF,1);
        this.background.drawRect(0,0,500,500);
        this.background.endFill();
        //trace("["+id+"].render");
    }

    override public function update(deltaTime:Int):Void {
        trace("["+id+"].update : "+deltaTime);
    }


}