Quick to respond to calls for new features from our customers, we've just added "dual channel input support" in our latest 1.2.10, available on our Downloads Page. So, you can now plug in two sources, left and right, and monitor, view and analyze your tuning for both channels (1 and 2) independently. This is a great feature and one much requested by those using such instruments as the Chapman Stick with stereo output.
Enjoy!