How to change the type of map

[Shultzy]

How do you change the type of map shown ie from default to OS?

[Stephen Atty]

[Shultzy]

Thanks, it's cleared up a little mystery. There is a difference in the position of place markers between the default map and the OS map. Can't remember how to upload images to show you.

[Peter Stockdale]

How do you change the type of map shown ie from default to OS?