Hello catherineliew26,
Yes, turning on the Multicurrency feature allows you to create transactions with foreign currencies. In addition, you can only create one currency per transaction at a time. If you want to create a transaction with another currency, you'll need to set up another customer or vendor profile with the correct currency.
Useful links are already included in this article: About Multicurrency.
Feel free to get back to us if you need anything else. Have a great day!
