Just to add another opinion... I can't bear the thought of installing directly to my Runtime. I used to do that and things got all out of hand. I always install to a temp directory, edit the files as needed--and there's usually a LOT of need--then move them. maclean, as far as SET files go, I think it makes sense to keep those with the camera files. Transpond from RDNA does that and it makes a lot of sense to see the "camera" file then the "set" pose for the figure to plop them in the right place. 'course, that could just be me. As far as MATs go, I put 'em all in the Pose directory. But, then again, if you've got P5 you can nest directories which helps a lot. I remember my pose directory getting WAY too big when I was using P4. It's a major reason I put up with P5, to tell the truth.