void onNetworkTopologyButtonClicked()
 {
     TimeScaleController.SetDefaultTimeScale();
     imageFader.FadeIn(switchFromLearningWindowToNetworkTopology);
 }
 void onStageEditorButtonClicked()
 {
     TimeScaleController.SetDefaultTimeScale();
     imageFader.FadeIn(switchFromLearningWindowToStageEditor);
 }