Since most manufactured parts have bilateral symmetry it would be good to have a virtual mirror. This could be part of the surface checks (like Zebra Stripes, but click to see a quick mirror) or maybe part of the rendering enhancements. Either way a global mirror that goes sided to side or could be a reflection below a part for presentation purposes. It could be a layer modifier. Creo and Alias both have this functionality and it is very helpful. The mirrrored geometry could just be a reflection of the render mesh with no added nurbs geometry.
I’d like to echo this.
Went looking on the forum here and not many threads about it.
Seeing how Rhino handles clipping planes, perhaps virtual mirrors could be done the same?
In Alias, it’s just a button on each layer you can quickly toggle on and off (which is super useful).