Hi Chris, set cartoon_side_chain_helper=1, HISA
should be set cartoon_side_chain_helper=1 That setting cannot yet be applied just to a specific set of atoms: it's a global setting. This is something we should add to our to-do list. Cheers, -- Jason -- Jason Vertrees, PhD PyMOL Product Manager Schrodinger, LLC (e) jason.vertr...@schrodinger.com (o) +1 (603) 374-7120