[PyMOL] non_bonded size

[Alex W. Smith]

Is there a way to set the size of non-bonded spheres to two different 
sizes within the same residue?  For example, I have a metal ion with a 
bound water and have both in the same residue but I want the metal ion 
to be bigger than the water.

I have check the list archives and googled "PyMol non-bonded sphere 
size" and have had no luck.

Suggestions?

Best regards,

Alex