Hi all, Apologies if this is a dumb question, but... Is there a way to get phenix.refine to ignore segids? I ask because COOT seems to be blithely unaware of segids and they have a habit of disappearing when one is rebuilding a model, resulting in very odd geometries when the side chain of a residue is in segment ' ' and the main chain is in segment 'A'. Alternatively, is there a 'convert chain IDs to segids' option like in CNS? Basically, I would like the segids removed/fixed/ignored automagically at the start of refinement (since I never use them for anything useful anyway). Thanks, Stephen -- Dr Stephen Graham Nuffield Medical Fellow Division of Structural Biology Wellcome Trust Centre for Human Genetics Roosevelt Drive Oxford OX3 7BN United Kingdom Phone: +44 1865 287 549