Profit and Loss Statement in Foreign Currency

hello

I am tryin to output a Profit and Loss Statement in foreign currency in second column (not in local or system curency ) in SBO 9.0 PL12  . Sometimes it gives information but sometimes it appears empty in the foreign currency

I use revaluation button, choose the currency with the exchange rate that i want, the revaluation method i want but still it appear with no  information in the second column. What else must i do to use foreign currency in the profit and loss statement ?

Kind regards

Héctor Santos