*whew* finally found this!
AHHH! THAT's how its done! Might I ask why both left and right mouse buttons are used? This seems like an unintuitive requirement to me (for whatever that's worth

) that could be simplified to just the right button (or just the left). What was frustrating, though, was after clicking and dragging with the right button, getting an error message (don't start from an input) , trying it in reverse (outs to ins) with the right mouse button, and getting NOTHING. I was wondering if the lines weren't being rendered (due to a non-refresh, hardware issue, etc.).
ANYWAYS...thanks for such a great product (both hardware and software). With such great software with so many features, its hard to get every single quirk perfected!