Dear, Molecular Modeling specialists and amateurs)
I wanted to try to simulate structure of little peptide which is contain cysteine zinc cluster. And till now cant'n find a way to add inorganic ions to the structure, after apploading of original amino acid chain.
Zinc is available in the AMBER force field, but not in the file \data\ForceField\FineType.mlm.
Probably the best way is to type it there, by analogy with Na+.
An easier way is to save the model in .hin format and add the line with the zinc.
In this case, you will be able to perform calculations in AMBER only and can not switch to a different force field, or return to .mlm format.