You have the ability to upload a calibration file to automatically calibrate the sensors connected with a specific values. This allows someone else to calibrate the cameras for you and send the file to be imported.
To import the Calibration file you need to scroll to the very bottom of the calibration window and click the button to open windows explorer. Find the file you want to import and click open.
Try "photogammery", "diorama", or "dinosaur", for some cool results.