I recently was able to add some non-US accounts to QBSE, and the amounts show up in the proper currency. For example, I can add an account based in the UK which is listed when adding the bank account to sync with QBSE. After adding the account the transactions do show in GBP (£). While I'm sure it's just reflecting the totalled value in USD ($) in the totals for all transactions, it does indicate the appropriate currency in the transaction entry though.
It does not appear to be possible to import older transactions into the account using the currency of the account. An example of this is when adding old transactions to a UK account that uses GBP (£), When importing the transaction they show up as USD ($).
So while there seems to be support for bank accounts that use a currency other than USD, it does not handle them as separate currencies or convert the amounts, or allow the import of older transactions to show in a different currency.
