How to Add Other Currencies

Goal:

Navigate to Settings from the left hand navigational bar.
Select Manage Currency Rates under the Finance settings.
Select the Inactive tab.
Find the currency you want to add and select the [...] button on the far right.
Select Activate from the drop-down menu.
Navigate back to the Active tab.
Adjust the Rate column beside the newly added currency.

Only users with appropriate permission settings will be able to access the settings page.
FAQ: Currency