I know that Trimble owns both SketchUp and Tekla Structures.
SketchUp team should speak with TS team because Tekla Structures is in the same 3D environment and the shortcuts are:
- middle button = pan
- wheel mouse = zoom
- Ctrl+middle button = orbit
I think that its better to have more options.
One size doesn't fit all.
This 3D navigation SketchUp blindness is the same like refusing to add solids modeling.