[Chimera-users] computed SS

Dear UCSF-Chimera, I have several structures with their own defined secondary structures (SS) that are slightly different from the Chimera default assignments. I want to display them with their own assignment, not the chimera default so I am using the command mm with the option computeSS false which works as intended. But my question is: if at any point an alignment were done without using this option, is it possible to go back to display each structure with their own SS assignment? I have tried but it seems that I can't go back. Or a related question, is it possible to switch back and forth between structure-defined (when available) or Chimera-default SS assignments ? Thank you, Best H.