He was the one saying that Poser already had what I was talking about. I was the one who said it was nowhere near what I meant.  ;-)

I know exactly what you're talking about. The biggest problem with that idea is that there aren't enough low poly figures out there that people would want to use, not to mention low poly figures that are  UV mapped specifically for sub-d, to avoid texture distortion.

Which brings up another feature idea: A UV window so you can drag your UVs around to compensate for texture stretching here and there and see your results in real time. A tiny bit of UV adjustment can go a long way.
Of course, it would also need to be able to hide parts by part or surface too, since all Poser figures these days have several layers of overlapping UVs all in the same 0-1 region.