You can control the smoothing further down to group level.
Set smoothing On or OFF for each group.
it is not limited to object level.

Want sharp edges?
Set Smoothing for that group OFF in its parameters dial.

Max crease angle for smoothing is 180°.

Smoothing is very good explained in the manual also.

Poser 1, 2, 3, 4, 5, 7, P8 and PPro2010, P9 and PP2012, P10 and PP2014 Game Dev
"Do not drive faster then your angel can fly"!