Probably, but I'd rather do it this way, since I use LW and Modo 302 to make morphs and I hate Poser's grouping tool about as much as I've ever hated anything. ;-)

But for the morphs I want to do, it really requires a modeling program and being able to drag  and snap points and slide edges around, according to object space, element center, geometry center and so on, blah blah blah.