Last night I needed to set up a custom User Curve to control tremolo on a customized version of Rd 78 Brite Tremolo. You do this via the display illustrated on page 91 of the Reference Manual.

I started by tapping boxes in the bottom row and spinning the Data Dial. But I noticed that the red LED on the corresponding volume slider moved as I did this. So I tried moving volume sliders instead and ... the points on the graph moved up and down and the values in the bottom row changed!

This is so cool! It's so much easier to shape the curve with the sliders! And the Montage showed me that I can do this!

The developers did a really good job with this user interface.