Settings Window - Company > Currency
In this window, you can select your home currency, add or modify the foreign currencies used, and change how the currencies appear in forms and windows.
You can also connect a merchant account with a foreign currency so that the merchant account is automatically selected for credit or debit card payments made with this currency.
Select the task you want help with in this window:
Turn on foreign currency transactions
Add or modify a foreign currency
Update the exchange rate for a foreign currency