[Chimera-users] PDB model merging

Hi all, I'm working on a project that requires me to merge models created through PDB BIOMT records. I have been using the copy&combine feature in the model panel to merge all of my models, and then writing a new PDB of only the combined model. I've noticed that this method deletes a large amount of information about the structure, including secondary structure records. Is there a way to merge models without losing such data? If it is relevant, I am merging 90+ models.