Autochange currency based on land function?

[NickOlsson]

Hi!

I'm wondering if I can do any of these things: 

- have the site show the currency of the country the costumer is in (i.e. US shows $, England £, Sweden shows SEK and most EU countries show €). Is this possible?

- Is it possible to add a button/rolldown menu where the costumer can manually change currency to their liking?

- Otherwise I wonder if it is at least possible to change into $ or € from my current SEK?