Spawning Enemies to Stage in Flash AS3

I have the enemies appearing on my stage  and spawning accordingly.  I have the location on where I want them to  spawn. The problem is that they are spawning on the first frame of my  game which is the main menu before entering the actual playing field. Not the second frame where my game commences.

How can i go about  this?

I tried this command and it just starts the game on the second frame.

I wrote this code within my createEnemy function.

   createEnemy.start(2);

        function commenceGame():void
        {
               
                //Sliding Duck Objects
                enemy = 1000;
                enemyTimer = new Timer(1000, enemy);
                enemyStorage = new MovieClip();
                addChild(enemyStorage);
                enemyTimer.addEventListener(TimerEvent.TIMER,createEnemy);
                enemyTimer.start();
               
                cursor = new Cursor();
                addChild(cursor);
                cursor.enabled=true;
                Mouse.hide();
                stage.addEventListener(MouseEvent.MOUSE_MOVE,shiftCursor);
        }

        //Creates Enemies on the Stage
        function createEnemy(event:TimerEvent):void
        {
                var enemyAppear = new MovieClip;
                enemyAppear = new Enemy();
                enemyAppear.x = 245;
                enemyAppear.y = 285;
                enemyStorage.addChild(enemyAppear);
               
        }

          commenceGame();

Hope this is enough code of my game to determine how to go about what I request.

Thanks Casey