[chimerax-users] Generating long fibrils

Dear all, Is there a way in chimeraX that I can use to generate a long fibril, say 20 chains, from a single chain with a twist angle of -1.4 degree and the rise (distance between layers) of 4.75 Angstrom. Some thing like this: [cid:4fb0d318-2ddd-4570-99a9-99846b9ee27c] I normally used Coot and manually add a single layer into density. Thanks, B ________________________________ UT Southwestern Medical Center The future of medicine, today.