Portfolio in EUR, profit in USD

I have problems with USD and EUR currencies and their profits in transactions.
When I create a new file I have chosen EUR as the currency.
I exchanged EUR for USD, then i bought BTC for $ 30,000 and sold it for $ 35,000.
In the transaction the profits are converted into EUR but I have USD and not EUR, only when I will do the conversion USD → EUR the profits will be in EUR.
How can I solve this?
Thank you very much.

Unfortunately, I don’t understand your question. Can you perhaps explain more clearly what you are after?

You can change the reporting currency at any time, it is not a once-and-for-all choice.