In the FM-X Part 2nd LFO, there's a curve shape setting of Sine. When you choose that curve, the Montage display shows you two curves: a red one, and a blue one (see screenshot above).
There's a cryptic note about this in the Reference Manual on page 138:
NOTE When “Sine” is selected, two waves will be shown in the diagram on the display because of the phase shift of the Amplitude Modulation wave.Between this note and experimentation on my part, I think I've figured out that the red curve shows what happens for Amplitude, and the blue curve shows what happens for Pitch and Filter.
Am I right about this?
Also, I think it would be a good idea to change the user interface so that the labels for the three potential targets of the 2nd LFO were color-coded to match the colors of the curves.
At this point, I'm starting to think there's a level beyond scuba diving: