This list contains currency rates, which allow you to recalculate amounts between different currencies.
All rates are saved in the base currency which is specified in Settings. If you use USD as the base currency, then amount in USD will be calculated by multiplying the amount in EUR by the currency rate.
If you change the base currency the values in the currency rates list becomes incorrect. In this case, it is recommended you erase this list and re-fill the currency rates.
From this list, you can quickly download currency rates instead of adding them manually. To do this, click Download button on the toolbar. The following dialog appears:
Here you can select date for downloading rates, source of rates (multiple sources are supported), and currencies for which you wish to download rates. When ready, click OK to start downloading. When process finishes, you will see downloaded rates in the list.