Hi Jerry,
The picture shows that the video tutorial you are viewing is for Chimera, not ChimeraX.  Chimera and ChimeraX are two different programs.

ChimeraX does not have a GUI tool, as you said, but it does have volume series capabilities via the "vseries" command, see both of the following and links therein:

<https://rbvi.ucsf.edu/chimerax/docs/user/trajectories.html>
<https://rbvi.ucsf.edu/chimerax/docs/user/commands/vseries.html>

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

> On Jun 30, 2023, at 12:46 PM, Jarrett Bowman via ChimeraX-users <chimerax-users@cgl.ucsf.edu> wrote:
>
> Hello,
> I am trying to use the volume series tool on ChimeraX version 1.6.1 for Windows. It doesn't appear to be in my download of ChimeraX possibly along with other tools. A tutorial I am following shows this picture:
>
> <image.png>
>
> While this is what I have:
>
> <image.png>
>
> Any help would be greatly appreciated!
>
> Jerry Bowman