Present: At the moment Mambu only allows creating arrangements in Base Currencies. Also it is only possible to link the same currency accounts to an Arrangement.
Change Requested: Mambu should allow creating arrangements in other currencies.
Although Loans are only supported in Base Currency, Deposits (Current Accounts) can be opened in other currencies. To manage these exposures under an arrangement, it should be possible to open arrangement in foreign currencies.
NB: Another option would be to allow linking of foreign currency accounts to Arrangements in Base currency. But this would mean exchange rate fluctuations can cause available balance to go into negative.