Morphos was/is a part of the Daz morph+ package if i recall it correctly and lets you move various body parts like "left arm up", "torso twist" etc..

To be honest Im not sure if "hand scale" and "feet scale" was a part of morphos, I tend to customize/edit all injection files til they suit my needs.

Anyway, when I use hand scales distortions often occurs when using hand poses or normal poses, a revert back to 100% usually solves the problem.