Feature Request:

Please add a feature where you can have primary exchange (with the orderbook to the right) but add 'secondary' exchange lines to your graph so you are tracking the price increase/decreases for all selected markets at the same time. (Obviously use xe.com or google exchange rates to get the USD values for those lines). This would be a great feature as you can see which markets are moving at a glance all on the same axis as other markets.