I appreciate you coming here for help, mlatzel.
Bulk adding foreign currency feature added in QuickBooks Online (QBO) is still unavailable. Your thoughts about this feature are being noted and while we're changing and evolving based largely on the suggestions of users like yourself, I want you to get in the loop about the latest news and product developments in QuickBooks. That said, I encourage you to visit our Firm of the future site.
For more information about managing Multicurrency, check this article: How to turn on Multicurrency and add or delete currencies.
To give you more insights with multi-currency in QuickBooks, please refer to these links:
I'm always here to help if you have any other questions while working with currencies. Stay safe and have a great rest of the day!
