All UI scenes of our application declared in json files and then gets rendered at runtime by special engine. Too many time spends on writing json by hands. Will be very convenient to implement some visual tool for creating UI scenes in a drag-and-drop manner (e.g. creating swing application with eclipse windowbuilder plugin, or creating birt xml reports with birt-designer eclipse plugin). Is there any best practices, methodologies, frameworks, docs, etc to start project in a right way? Thnx in advance.All UI scenes of our application declared in js