It is possible to change the element style of the magnet zone.  pjz99 explained it to me in this thread:

http://www.renderosity.com/mod/forumpro/showthread.php?thread_id=2703984

"It is good to see ourselves as others see us. Try as we may, we are never
able to know ourselves fully as we are, especially the evil side of us.
This we can do only if we are not angry with our critics but will take in good
heart whatever they might have to say." - Ghandi