But I don’t see the “Use Wise” button anymore. It just lists a bunch of currencies. And at the top there is the category with “Currencies you hold”. At the bottom it says “Make a one time transfer”.

Is it correct that the USD sub-account is only useful to directly pay in USD in the USA?
And that you can't transfer money from it to another non-BUNQ USD-account?

I want to transfer back the contents of my USD sub-account to the EUR-account.
How do I do this?