When you check Alyson2 and Miki4, both W-Mapped figures, you will see that SM puts magnets in them.
And those magnets are joint controlled via dependencies.

As I said above, painting the W-Map is a better solution and avoids extra problems.

Poser 1, 2, 3, 4, 5, 7, P8 and PPro2010, P9 and PP2012, P10 and PP2014 Game Dev
"Do not drive faster then your angel can fly"!