When starting an experiment, sometimes it takes quite some time until something happens (e.g., the execution of the experiment is displayed). Particularly, when the experiment status is "Scheduled", the experiment submission webpage doesn't change, until the experiment actually started to execute.

My problem is that there is absolutely no response, whether the submission was successful or not. In my point of view, there are three options to display the successive submission:

1. Show the experiment execution page immediately after successful submission
2. Change the "Go" button into something else, for example a "Stop" button
3. Open a message box, saying: "Experiment was scheduled, waiting for it to start" with two buttons "Cancel experiment" and "Show experiment", which closes automatically after the experiment was started