Okay so I noticed that > denotes positive and < denotes negative direction of movement, relative to the UVN widget over a control point. Would +/- symbols be more intuitive?
I feel the increments could be done better too. For instance, I never need 100, 10, .01 or .001. But I would use 1, .5, .25 and .1. Maybe this should be related to a template for a 3DM document i.e. the user inputs (or can at least edit) the entries for these 6 fields. Especially since the needs from a small objects template may be different to a large objects template, for example.