Dear Kyle, Not sure this would be a good idea. But if you want to change the symmetry, then you need to change and recompile the code. The files are in src/symmetries.h and src/symmetries.cpp HTH, S > Hi everyone, > > I would like to add a new symmetry group for use in autorefine in Relion > 1.3. Could anyone indicate where I should set up the file to be > referenced? > > Many thanks in advance, > Kyle > > rot_axis 3 0 0 1 > rot_axis 3 0 0.577350 -0.204124 > > -- Sjors Scheres MRC Laboratory of Molecular Biology Francis Crick Avenue, Cambridge Biomedical Campus Cambridge CB2 0QH, U.K. tel: +44 (0)1223 267061 http://www2.mrc-lmb.cam.ac.uk/groups/scheres