(11/29/2010 for Softimage 2011)
This script gathers all the polymeshes for affected models and places them in model-specific groups (i.e. one group for each model). This can be done on all the models in the scene at once, or on a selection of models. The groups created by the script can be updated after the fact, to account for updated geometry or new group settings. Originally designed to help me with pointcached scenes.