public override void InitializeCompanionScreen(CompanionScreenViewModel viewModel) {
     base.InitializeCompanionScreen(viewModel);
     // This is called when a CompanionScreenViewModel is created
 }
 public virtual void InitializeCompanionScreen(CompanionScreenViewModel viewModel) {
     // This is called when a CompanionScreenViewModel is created
     CompanionScreenViewModelManager.Add(viewModel);
 }