Changing functional currency of a company

Hi

We have a Ledger defined with functional currency as MUR, and in this Ledger we have several companies and the functional currency is MUR.

Now one of the company's functional currency is changing to USD dollar.

E.g if we enter transactions in subledgers for Payables or Receivables in a foreign currency other than USD we need the transaction amount to be converted to USD,  not to MUR.

E.g. When we enter a payables invoice as 10 EUR, entered amount to be  recorded as 10 EUR and converted amount (functional currency amount) to be 13.5 USD. (1 EUR=1.35 USD)

Is there any functionality to achieve that (Reporting Currency or Multiple Currency functionality) or do I have to define a new Ledger to achieve this?