Hi David,
The way I’ve gotten sessions with similar views on similar structures is to have a “reference” structure that I use for positioning.  In your case you’d start with the session you already have, then open your next structure and match it onto the first structure.  Then you could hide or close the first structure.  If you have several similar structures you’d probably want to keep starting with the same reference structure. 

I did not find a more direct way because the initial positions of the structures (just from the coordinates in their files before you move anything) are not necessarily aligned.  I.e. it would not generally work simply to write and reuse the transformation matrix of the first structure.

For matching one structure onto the other, you could use whichever method works best for you in this case.
<http://www.rbvi.ucsf.edu/chimera/docs/UsersGuide/superposition.html>

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

> On Jul 29, 2019, at 9:10 AM, David Sáez <davidsaez@udec.cl> wrote:
>
> Dear Chimera experts,
>
> I have saved a session of Chimera showing the perfect angle and size for the molecules of interest. Now I would like to apply the same parameters to visualize another (but similar, only differnet coordinates) pdb file. Is there a way to do that?
>
> Thanks in advance.
>
> David