public StoryFrameModel AddStoryFrame(StoryFrameModel storyModel)
{
var manager = ModelsComposite.StoryFrameModelManager;
manager.AddModel(storyModel);
ModelsComposite.CharacterStoryModelManager.AddStoryFrameModel(storyModel.Id);
ModelsComposite.ItemStoryModelManager.AddStoryFrameModel(storyModel.Id);
EventAggregator.OnModelDataChanged(this, new ModelValueChangedEventArgs());
EventAggregator.OnAddIMarkable(this, new AddIMarkableModelEventArgs(storyModel));
return storyModel;
}