I found the hidden menu in Jaguars new NLI ICT system by accident. Start the car and wait for the Infotainment system to boot up fully. Then press and hold the source button the screen until the hidden menu appears. Then you can scroll through all the cars data depending on the trim level you have. This model was a Premium trim so it didn't have much to view. As I get my hands on more of these new models I will play with them until I find more hidden menus as I know there is another one I didn't find yet.