Hi Thibault, Yes, that is the recommended method: "combine" is a dual function command that can either copy (if you specify one atomic model) or combine (if you specify more than atomic model). Best regards, Elaine ----- Elaine C. Meng, Ph.D. UCSF Chimera(X) team Department of Pharmaceutical Chemistry University of California, San Francisco

On Oct 31, 2022, at 2:54 AM, mailman-bounces--- via ChimeraX-users <chimerax-users@cgl.ucsf.edu> wrote:

Hi :)

I wanted to duplicate only one part of a model and I haven't found a copy function (I found this old thread tho https://www.rbvi.ucsf.edu/pipermail/chimerax-users/2020-January/000783.html) For now my strategy is to duplicate the model with "combine #1 close false" and then delete what I don't want on the new model like for example (to delete helices) "delete ~helix & #2"

I know you are always super busy with ChimeraX dev, but I thought this could be a good "quick way" to create a "copy" function of example (if there are no alternative that I missed of course).

Have a great day! Best regards, Thibault.