by Mark » Wed Mar 21, 2012 10:43 am
Hi giovanni,
Just record all the transactions as they happen. So, when you buy a stock in AUD, this is a purchase of that stock assigned to the AUD currency, and a sell of AUD cash. If you later sell US cash, and buy AUD cash, record a sell of US cash, and a buy of AUD cash. You would want to have a cash account for each currency you hold cash in.
If you have multiple cash accounts in different currencies in the same account, you can set up sub-portfolios for each currency, and assign the appropriate cash account as the default cash account for each currency sub-portfolio.