Resolved: Possible alternative solution to writing every single currency

The code below:

Total di SalesAmount per CurrencyKey = (
var totalForCurrency = CALCULATE(
SUM('fact_InternetSales'[SalesAmount]),
    ALLSELECTED('fact_InternetSales'[CurrencyKey])
)
RETURN
IF(ISFILTERED(dim_Currency[CurrencyAlternateKey]), totalForCurrency, "No currency selected"))

is a valid option instead of writing the codes of individual currencies?
Thanks a lot