I found a work around to load a currency with all correct details.

In Settings/Accounting you need to activate Multicurrency, then you open Activate Other Currencies.

There you go to Favorites and select import Currencies.  You must prepare a csv file with a currency you want to import.  CSV file fields are self explanatory:

Currency, Currency Unit, Currency Subunit, Symbol, Symbol Position, Active

I may have to tweak around with that file in order to find correct values for your currency.

I imported my currency and it worked just fine.

there is no way to set the symbol as the only fields available are

- currency
- rate
- unit
- cents