To find a way to use my muscle memory that was trained for years and I cannot seem to get rid of, I need to change the viewport navigation in Blender 2.8 to this:
S + LMB = Dolly Camera
S + MMB = Pan Camera
S + RMB = Rotate Camera
After remapping scale to some previously unassigned combination, dolly and pan are working fine. But pressing S + RMB makes the context menu pop up. I believe that is happening because Blender does not recognise S as a modifier key like Alt or Ctrl. Is there a way to make Blender recognise it as such?