Generates the PyMOL session for the scaffold, model, and design structures.
        Returns this session and the script which generated it.

def create_single_structure_pse(structure_name, structure_content, residue_ids_of_interest, pymol_executable = 'pymol', settings = {}):
    ''' Generates the PyMOL session for the scaffold, model, and design structures.
        Returns this session and the script which generated it.'''
    b = BatchBuilder(pymol_executable = pymol_executable)
    PSE_files = b.run(SingleStructureBuilder, [{structure_name : PDBContainer(structure_name, structure_content, residue_ids_of_interest)}], settings = settings)
    return PSE_files[0], b.PSE_scripts[0]