To renumber residues using a sequence or an offset

1. Go to Homology -> Renumber Residues.
2. In the dialog:
   • Enter the PDB chain you want to renumber.
   • Select the renumbering method:
     • Fixed Offset: enter the starting residue number.
     • Master Sequence: select the sequence to match.
     • PDB Construct Sequence: renumber based on the construct sequence.