In Camera setup window you will find RGB and Depth info from the sensors connected. It allows you to understand if you are happy with the way cameras are set up. Do they cover the area you want to capture without cutting of some body or object parts? If the answers is yes, good stuff.
Also, you can check if the cameras are working correct: green button next to the camera – yes they are working as it should, yellow- working 50/50, red – bad news, sensors are not working. Check them and if needed reboot it.
Try "photogammery", "diorama", or "dinosaur", for some cool results.