Hello piet,
The Multi-currency feature lets you assign different currency for every client, supplier, etc. Turning it on requires you to choose your Home Currency. And, this will be used for all reports.
With that information, there isn't an option to generate a Profit and Loss report with a different currency. However, this report will show Unrealized Gain and Loss account based on the foreign exchange rates.
This can be a good product suggestion. I'll pass it along to our Product Developers Team for review.
For any inquiries about this feature, please check this out: About Multi-currency.
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