[Chimera-users] Select multiple files and open in the same instance

Elaine Meng meng at cgl.ucsf.edu
Fri Oct 30 08:38:49 PDT 2020

Hi Ahmad,
I'm guessing you are using MacOS Catalina, for which this is a known problem.  Sorry, there is no Chimera setting to control it.  One possibility is to use ChimeraX instead, which does not have this problem, but it depends on which tools/features you are using.  ChimeraX has the same map fitting and many other things as Chimera.  Some  currently missing features are listed in the ChimeraX download page.

This separate-instance problem was mentioned in earlier posts, for example:

I hope this helps,
Elaine C. Meng, Ph.D.                       
UCSF Chimera(X) team
Department of Pharmaceutical Chemistry
University of California, San Francisco

> On Oct 29, 2020, at 10:56 PM, Ahmad Khalifa <underoath006 at gmail.com> wrote:
> I used to have Chimera configured to select multiple files, click open, and have them all open in the same instance. After I reinstalled it, now it opens an instance for every file, how can I change it back? 
> Regards. 

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