I'm totally new to modelling applications. I have the trial version of 3D Coat. I have a Full body obj that I exported from Poser 2012. I want to smooth parts on the mesh in 3dc. I import the obj into 3dc using the 'Reference Mesh' option.

Here is the problem. When I apply the smoothing brush, the mesh tears apart at the group boundaries. Even it I use UV Mapper to assign all the mesh to one group, it still tears apart where the boundaries used to be. Presumably this is because those facets are not welded. If I weld the mesh, I can smooth it in 3dc, but it will no longer function as a morph in Poser.

Is there a way I can use 3dc to smooth the mesh, and still be able to use the result as a morph in Poser?