[PyMOL] appending metal ions

[Carlo Zambonelli]

I have a pdb file with the coordinates of an apo-enzyme. From 
biochemical data I knowFe3+ and Zn2+ are essential for catalysis; I also 
know some of the residues involved in coordination of Fe3+ and Zn2+. Can 
I position 2 ions in the structure so that they are correctly oriented 
relative to the coordinating residues? My ultimate goal is to create a 
PDF file containing also the metal ions.
Thanks,
Carlo