When I export a model with custom smoothing groups from 3dsmax 2009 by FBX(v2010 or other versions), the smoothing group information has been lost in MED.

I also tried with 3dsmax 2013 but the result is same.

When I import this fbx to milkshape, smoothing groups is working correctly in milkshape. So there is smoothing group information data in FBX file. But MED can't import this data.