No…this set up only allows for you to view the video in FCP. It allows you to see the video the way the viewer will be seeing the video.
The reason why you wont be able to use it as a second monitor is because the TV is not connect to your graphics card from your computer. I’ve never seen it done before, but I supposed you might be able to use a TV as a second computer monitor. Either way, you can’t use it for both. It’s either to use an external monitor with FCP (or any NLE) or as a second computer monitor.
