I have just completed my first week with my Model S. This forum has been a great resource to me as I have encountered, and then figured out, the nuances of the car. One thing I have not been able to figure out on my own is some sort of trip counter that can be displayed on either side of the driver's display. I am able to use the scroll wheel to scroll to the trip counter which shows the numbers 6 and 2. Both of them are half way between the number showing and the next number. I am trying to find out what this is for and how to reset it? Is this a useful tool? I appreciate, as always, your knowledge and input.