"Affected actors" is nothing new to W-Mapped figures.
You can "play" with "affected actors" in conventional rigging as good as in W-Mapped rigging.

With a conventionally rigged figure, I could make a **single group long shirt **or pullover follow ALL bends of that figure without cutting the shirt or pullover up into groups. => The clothing stayed single mesh, single group.

I even demo-ed it to SM. Now THAT was something.

But it requires a lot of work for the everage home alone end user.
You had to change ALL joint fall off zones in the 3 axis, twist, side-side, and bend.

But I could rig any full clothing set with a single mouseclick thereafter.

Still can actualy, but you carefully have to prepare the whole figure and ALL joints to get the system going.

W-Mapping is the next best thing. I just never understood why they kept adding magnets to a W-Mapped figure.
Paint the map. Done.

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"!