JScript on startup screen - to close screen

Hello,

It is possible to close a screen on a startup script ?

I tried 2 possibilities but it dosn't work :

1.  

   var auto = new MFormsAutomation();

            auto.AddStep(ActionType.Key, "F3");

            var uriF3 = auto.ToUri();

            DashboardTaskService.Manager.LaunchTask(new Task(uriF3));

     2-

           controller.PressButton("F3");

With a shorcut this solution works but not with a startup script.

Anyone have an idea ?

Thank you !