Currently, it's not possible because the production and beta versions of LaunchBox for Android don't support importing PS3 and GameHub Steam games.
In the next beta version, users will be able to import PS3 games and play them using the Custom Emulator (With Code).
When it comes to GameHub Steam games, it wouldn't be possible until we implement logic to import Steam games. To launch games on the GameHub emulator, the LB app must pass the Steam ID of the selected game. It's not currently supported.