A user with Administrator Rights can add one or more currencies that sales reps can use when selling advertising.
Go to Admin >>> Company settings and the Currencies tab.
Most available currencies are preloaded and deleted in the database. This makes it very easy to re-instate a currency. In the lower right corner, select "Show deleted". Select a currency and un-delete it to make it available.
To create a completely new currency, click New in the lower right corner and set up the new currency.