Hello,<br><br>I am trying to make two different groups from residues below. one under the name Solute (residues a and b) and the other for solvent (residue c, SOL). The only way I know now is to do this by splitting the list of atom numbers [system] (default index file), from 1 to 362 and creating a new directive [SOL] and putting the rest of the atoms under this directory. Can you please help how to do this using the commands like nr, name... I could not do that by reading the help option Thanks<br>
<br><br> 0 System : 20343 atoms<br> 1 a : 10 atoms<br> 2 b : 333 atoms<br> 3 c : 20000 atoms<br>