[modeller_usage] Adding a ligand

 Dear All,
 
I need some help to insert some Cl atom and attach to my atom file. The atoms 
are:
HET     CL  A1174      1                                                       
HET     CL  A1175      1                                                       
HETNAM    CL CHLORIDE ION                                                     
FORMUL   2   CL   2(CL1 1-)                                                    
FORMUL   3  HOH   *119(H2 O1)

HETATM  887 CL    CL A1174     -48.597  14.617 -86.523  1.00 42.42          
CL  
HETATM  888 CL    CL A1175     -43.313  22.617 -80.666  1.00 46.05          
CL  
HETATM  889  O   HOH Z   1     -22.832   8.494 -87.572  1.00 41.36           
O  
HETATM  890  O   HOH Z   2     -24.042   4.420 -89.079  1.00 58.80           
O  
HETATM  891  O   HOH Z   3     -24.444   9.116 -90.286  1.00 32.67           
O  
HETATM  892  O   HOH Z   4     -23.398   7.438 -99.414  1.00 45.67           
O  
HETATM  893  O   HOH Z   5     -25.681   7.217 -92.041  1.00 44.81           
O  
HETATM  894  O   HOH Z   6     -21.582  10.893 -97.569  1.00 30.12           
O  

Another qestion, I can I use the optimize command?
Thanks for your help,

Ricardo Leite