The Sub-Division tool provides the ability to sub-divide a mesh for greater detail and smoothing of the mesh. Sub-dividing the mesh of a figure will not lose the ability to adjust morph targets that were added to the figure prior to be subdivided. In addition, the UV Mapping of the object is adjusted to reflect the additional polygons.
Most figures supplied by DAZ or other sources are usually at a fairly high polygon count once they are released so using sub-d on them will probably not be a good idea, especially as it may cause memory problems due to the increased polygon count.
To sub-divide a mesh in Studio:
NOTE! If you notice that the mesh is not sub-dividing, this may indicate that your memory is low and Studio cannot complete the operation. Close Studio to clear memory and re-open it or use some other method of clearing memory in order to continue.
CAUTION! Any morph targets applied prior to sub-dividing a mesh should work afterwards, however, once sub-divided, any morph targets made to work with the original mesh will no longer match the new mesh and cannot be loaded as a morph target.