The program allows working with four servers.
They store historical data and run a demo server for trading on the built-in demo accounts such as ATAS sim and Crypto Sim. It also has a demo connection called Crypto data which provides quotes for crypto exchanges.
The platform does not provide online quotes for stock exchanges, therefore, you need to connect a trading account.
The list of available data providers can be found at the link below:
It does not matter which server to use because they are all the same.
Customer support service by UserEcho