Well, yes and no. It shouldn't be too big a job to cut-and-paste between .cr2 files to make a single figure out of a pair of boots. But where actual bodyparts overlap, I wouldn't want to try. And the .obj files could be awkward. You'd need to use the right software if you wanted to merge the two. I think you need to know what you're doing with clothing figures to do this, and I'm not sure that you gain all that much. Except a shorter list of figures in Poser.