Great concept, missing key feature

I love this app, but it is missing a feature that prevents me from using it. I am an expat living overseas, and I need to be able to change the currency of the app (or if it has this feature, it needs to be more obvious how to do it). Even better would be the ability to chance the currency of individual debts and credits (and automatic exchange rate calculation), as I often have debts/credits in multiple currencies.

SteveJess about Balances