You can if you have different areas of the model select the area by color. Then smooth set the angle where you like. Generaly I perfer to do my work in wings and set some edges to hard. It is a bit of a trick though getting the hard edges hard and the soft edges soft. As an experement use Autosmooth in Wings.(object menu) Just like Bryce you can set the angle and all angles over that will be set hard then import. Hope I am helpful with this.

The wit of a misplaced ex-patriot.
I cheated on my metaphysics exam by looking into the soul of the person next to me.