[Newbies] Keep a morph on top

[Danny Chan]

Hi!
I am trying to write a little morphic application for retrieving datasets from 
images of data plots. I have written a little coordinate system morph that I 
can resize and where I can enter the extreme values. Now I would like to load 
for example an image from a pdf page, move it around so that the graph I need 
is on the screen, but somehow ensure that my coordinate system morph stays on 
top of the image. Is there a way to do this?

Danny