Money Plus for BlackBerry 10 support over 100 most popular currencies. Each account can be configured to a different currency. 

To change account currency go to Accounts tab, select account you want to edit and in Account Details screen you can specify currency to use. All existing transactions in this account will be updated to the selected currency. 

Please note that currently only currencies with two decimal points are supported. Support for currencies with three decimal points is planned for future release.