I found the control for the mouse, thank you for your reply (both of you). I realize my habit of side-scrolling comes from using AutoCad. I push the scrollwheel both straight down and sideways, the easiest way to navigate around a drawing in cad so I don’t want to make a general mouse usage change.
I do see, however an app-specific setting for the sculpt mouse, and can choose SketchUp. I still can’t find the darned horizontal control “off” setting…so still searching around for how to do this.
