Smoothing/Poly Mesh Export Issue..

 From:  slayer
814.1 
Hi-
Is it possible to further divide only a select big radiused face on a model during export? I am only able to do this globally by cranking the scale down to 3 or so, but it makes other areas very dense. I am not sure what the "Divide larger than" and "avoid smaller than" options do and have not had much success with them if this is the answer. I am currently unable to upload pics so I am trying to ask without them. Hope you understand. Any input appreciated. Thanks.