[Chimera-users] adding metal ions

I have a pdb file with the coordinates of an apo-enzyme. I know Fe3+ 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