Also, it would be very useful to be able to select currency on "Budgets" which can be defined in Dropdowns.
When there is a link to Budget, the currency can be shown on the right side of "Asset > Financial and administrative information > Value" and "Contract > Costs > Cost".
When there is no a link to Budget, the currency can be select from the currency dorpdown for both.
Also, it would be very useful to be able to select currency on "Budgets" which can be defined in Dropdowns.