OO_addnullstopoint script

[Gerbrand Nel]

Ok this might give away my age, but I remember a time when the "add 
nulls to points" script gave you a choice between constrain to nulls, 
and constrain points to nulls.
In 2013 it only constrains to the nulls.
Anyone know where I can find a script to create nulls on selected 
points, constrained to those points?
I saw some Ice stuff to do this on rray.de, but I miss the old way.
Thanks guys
G