It allows you to edit groups and materials in OBJ files and can be used to extract emebedded geometries from CR2s, PZ3s, and PP2s. I use it to combine nude figures with their clothing (along with UVmapper for "slicing" meshes). If you import a CR2 along with it's base OBJ file you can morph the OBJ within the program (using the morphs in the cr2). -JH.