Hello there, info,
Accounts with other currencies won't automatically be part of the option when exchanging an amount. You'll need to create them first.
You'll now be able to see the USD option on the Transfer page.
To learn more about how multicurrency works, you can check this article: https://quickbooks.intuit.com/learn-support/en-us/multi-currency/how-multicurrency-works/00/186157.
You can post your questions in the Community whenever you have one.