It seems like you are interested in running split-screen mode on a PC game using Sandboxie, a well-known sandbox program. While using Sandboxie for gaming can be a bit more advanced, especially when dealing with split-screen modes, it can be a useful tool for isolating programs from the rest of your system. Here are a few general steps you might take to set up split-screen functionality using Sandboxie: 1. Install the Game: Make sure the game you want to run in split-screen mode is installed on your system. 2. Set Up Sandboxie: Configure Sandboxie to run the game. You may need to consider setting up multiple instances or sandboxes to isolate each game instance for split-screen functionality. 3. Run Game in Sandboxie...