Using dformers on specific faces
I read some time ago about someone wanting to move some specific faces on a head. The idea was that you could create a group of just those faces and apply the dformer. The dformer would then only show the hightlighted vertices in that specific group on the head. This was some time ago, I did not bookmark it or "absorb" the info when I read it. Has anyone heard of this and how do I do it?

Comments
That sounds like you mean using the Weight Map mode with a D-Former. If that's the case, you can just change Influence Mode to Weight Map. Paint the weight with Node Weight Brush tool, then manipulate the D-Former handler.