Hi itravel,
Welcome to Community! QuickBooks Desktop Multicurrency feature enables you to customers, suppliers and bank accounts. I'd be glad to assist!
Currencies can be assigned to certain account types such as, Bank, Credit Card, Accounts Receivable and Accounts Payable. QuickBooks will automatically create a separate account for each currency as you create transactions, based on the currency assigned to your customers or suppliers. Here's a helpful guide to assist with adding foreign-currency accounts in QuickBooks Desktop.
If you have any other questions, please don't hesitate to reach back out. We'd be happy to help!