newbie - a few questions

Hi, I bought a 2002 GTA on wednesday.
Despite the dealer dismissing any issues with rust, saying that any rust in the GTA is the result of stonechipping from the outside.
I've 2 tiny spots in the typical place. I bought the car knowing this.

I have a couple of questions.
How do i set the digital aircon temp readings to Centigrade?

How do I set the display to show mpg and other trip data?

Hi there,
congrats on your purchase.
The aircon display needs to be changed by the dealer unfortunately, but if you bought from a main dealer they should do it foc.
The button on the end of the left hand stalk scrolls through all of your different displays and holding it in resets the digital trip.

thanks chris.