Now having it so that you can switch is all well and good, but it would be nice to be able to choose what is in which format EG: being english, we have mph, and miles and MPG (uk), but Celcius temperatures. So i want the speed to be in imperial, and the temperatures to be in metric. Any chance of this happening (also, you say "Metric SI" this is technically incorrect, as the SI unit for temperature is Kelvin (K) but that is being really pedantic)