At the moment it is only possible to allow or to block an application completly. However, I do have many applications I would like to allow in the local network only, while Internet access should be blocked. This includes applications like printer software, media centers, light control, etc.
Therefore, I would like to have an option to allow traffic to all (connected) private networks. This could be implemented in the UI by clicking on the flame symbol as a third option. It would also be a good idea to allow this option to be set as default by the user.