Using
the pointer, select the points whose rigid skin point set membership you
want to change.
To
add points to the currently selected set, -click
the points you want to add.
To
remove points from the currently selected set, -click
the points.
To
add points to some other rigid skin point set, first select the
rigid skin point set’s joint. The points currently in the set are
displayed in yellow. Now, as before, select the points you want
to add by -clicking
them.