I have a decent MK2. When I am diving and using the compass feature I have to rotate my arm around so the watch is inline with my vector. I set the heading, but then my arm returns to a more normal position and my heading is off. For example if I am heading North my compass will read NE unless I bring my arm all the up and around.
I would like the option to rotate the screen so that the 12'o clock postion is more like 10 o'clock that way the information will present in a more squared way without having to bring my arm all the way up and over and I can just look over at the watch.
I think this would be an easy option to add and use the fwd and back buttons to rotate to the desired position in app, but perhaps could see it for the entire watch UI as well.