CFD (Contract for Difference) is a contract, the value of which goes up or down depending on the price of the base asset. Contract for Difference is a form of financial agreement between two parties (Buyer and seller).
I case of Indices, you can define the country by the first part of the symbol name:
CFDs on British indices are quoted in GBP. CFDs on German indices are quoted EUR. CFDs on American indices, as well as Spot Oil, are quoted in USD.
Go to "View - Symbols".
Here you can choose the group of CFDs, which is interesting for you: Indices, Spot oil.
Click "Show" to add the group or the particular symbol to the main panel.