Hi Siyoung,
In the Preferences, there is a section called Startup.  It allows directly entering ChimeraX commands to execute upon startup.  If you prefer to have the commands in one or more separate files (which I also like to do), however, you can simply put the command to open each cxc file there, instead of all the individual commands directly.

See Preferences:
<https://rbvi.ucsf.edu/chimerax/docs/user/preferences.html>

"Execute these commands at startup" option:
<https://rbvi.ucsf.edu/chimerax/docs/user/preferences.html#startup>

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

> On Nov 20, 2023, at 11:05 AM, Siyoung Kim via ChimeraX-users <chimerax-users@cgl.ucsf.edu> wrote:
>
> Hello,
>
> Would there be a way to run some chimerax scripts at the beginning of every ChimeraX session?
> In particular, I want three things:
>
> 1. Change the color of the background.
> set bgColor white
>
> 2. Change the mode of the mouse.
> ui mousemode right zoom
>
> 3. Open the shell.
> ui tool show Shell
>
> The most relevant documentation I found was:
> "Python files in the directory ~/chimerax_start (where ~ is the user's home directory) are imported automatically at startup."
> I put ChimeraX scripts (not python files) in this folder, but no luck.
>
> Thank you.
> Best,
> Siyoung