I want to have less white and more color on an electrostatic potential map. I suspect this is done by reducing the range, but I can't find how to do this. I start with

open 1bl8 fromDatabase pdb format mmcif                                                             

select protein                                                                                      

coulombic sel                                                                                       

ui tool show "Surface Color"                                                                        


Then I have this dialog, where I have changed -10 ... +10 to -5 ... +5

Inline image

When I click the Color button, I get "No map chosen for coloring", but the "using map" menu has no options.

???

Also I would like to re-color the surfaces for all 4 chains, not one at a time, but the "Color surface" menu seems to have 4 separate chain surfaces, but no option for all 4 at once.

I will appreciate guidance!

Thanks, -Eric
http://martz.molviz.org