Hi Mike,

> A command that can take two or more surfaces and rebuild them into a new
> single contiguous one (within reason). That way (Pilou), you could take the
> SketchUp models and smooth out those "polys".

It is feasible to have a surface combine tool, but only for the case where 2 surfaces are touching each other along an "untrimmed" edge - meaning having each underlying surface touch each other.

If they touch at some kind of internal trim curve it's not very feasible to combine them together because every NURBS surface is made up of a rectangular grid of control points and it's not very easy to figure out some way to combine together 2 unaligned rectangular grids into one single rectangular grid.

- Michael