There should be a multicurrency view of payments (on the list and categories pages). Currently it’s only possible to see currencies separately which makes it less useful when using multiple currencies. So in addition to GBP, EUR,CHF tabs I should also have a tab “All” which shows the list of all payments regardless of the currency. It would automatically display the equivalent in a given currency (say GBP) with the amount estimated at the moment of purchase if a different currency was used by the merchant (say EUR) and the payment (say CHF).
Same for the payment categories pages.
Pretty simple, but very helpful.