The ICAO maps are scanned maps from the official government sources. They are images, just like you would find on paper maps. You can't add data to these unless you can get the government to add it.
Your MAP SETTINGS already has an option for when the scanned charts should be track up or north up. It defaults to NORTH UP always, because if you go track up, all the writing will be upside down when you are flying south, but you can set this to be track up if you want.