multiple currencies in reports and goals

This is such a simple request I can’t believe it is not possible. Our company currency is GBP but we trade in several currencies and have a US sales team as well as a UK team. We added an “amount in USD” property that calculates the amount based on the deal currency and the exchange rate. So we can see a number in the right currency for our US reps although no $ symbol. We can also set a custom goal on that but the goals feature insists on putting “units” next to the numbers instead of leaving it blank or using a $ symbol. We are so close to having a useable work around but it is almost as if someone is deliberately trying to make this unuseable for multi country sales teams. So frustrating and embarrasing when we get the “you are joking?” response when we have to explain that this utterly basic feature (goals in the reps currency) isn’t available.