[Chimera-users] viewing same size atoms within multiple molecules

Hi, I am trying to implement a script so that each individual atom in each molecule I view on chimera is the same size (ie each carbon atom i view, regardless of the size of the molecule views a the same size). I realize this must be a function of the scale factor which changes the size of the molecules to appropriate viewing size. Is there a way to properly scale each molecule so that they have a standard atom viewing size. I would appreciate any help in this regard. Andrew