Dear List, Is it possible to specify multiple twin operators in Phenix? I have tetartohedrally-twinned data. If so, what's the syntax, and an example? And can it be done through the GUI? Thanks, Jacob ******************************************* Jacob Pearson Keller, PhD Looger Lab/HHMI Janelia Research Campus 19700 Helix Dr, Ashburn, VA 20147 email: [email protected] *******************************************