Hi there,
Thanks for reaching out to the Community.
At this time, QuickBooks Online will only show you the home currency on your reports. I know how useful this feature is to you and I encourage you to leave Feedback about this to our engineers. You can do this by clicking the gear icon and looking for feedback. New product ideas are based on the feedback we get from other users like you. Let me know if you've got questions. I'm here to help.