mutate_insert [molecule] [residue name] [new residue name, new residue type](i)
Adds new residues after a specified place in the molecule. Terminated by a blank line. The new residue names should be unique to the molecule. This command merely makes space in the database for new residues. The user must place them. This could be done in a number of ways, but recommend Lego_loop to start with.
The following will insert an alanine residue after residue 102 in molecule A26.
mut_insert a26 102 102a ala ; sel_off a26 102 103 lego_loop
and identify 100 to 105, say. If the new residue had a longer side chain, for example Phe, it would also need to be constructed with Lego_side and identify an atom.