Hi Arvind,
Unfortunately not, it is a limitation of RR distance maps.  It is mentioned in the technical notes section at the bottom of the page, "Coloring is applied across the full value range.”

<http://www.rbvi.ucsf.edu/chimera/docs/ContributedSoftware/rrdistmaps/rrdistmaps.html>

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


> On May 3, 2019, at 12:11 AM, Arvind SHARMA <arvind.sharma@pasteur.fr> wrote:
>
> Hi,
>
> I am comparing four drug bound structures of homologous proteins to their unbound structures in chimera RR distance maps. These structures vary to different degree to unbound structures and I want to show that in four individual RR distance maps (each bound structure to unbound structure). The problem is that the scale varies each time and I was wondering if there is a way to normalize the scale? or set the color code so that, for e.g, for stdv of 10 its red in all cases and below 5 its always white.
>
> Thanks.
> Best wishes,
> Arvind.