On your Dashboard -> Click on 3 dots on right side of your Monitor and choose Edit
You will see Ping locations we offer currently. These servers placed on key locations of the world. You will be able to test your servers from all continents if you need.
But if you do not need and you are just serving to local markets, you can de-select any City and Country from that list.
We add new servers from time to time. Or if you need a server in a specific city, please contact us to request.