Thanks Elaine, The extend command is what I was missing. The following command sequence did do it. Tools->Multiscale Models-> Make Models Select -> chain (from the main menu) Tools->Multiscale Models->Extend Copies Action->Color ________________________________________ From: Elaine Meng [meng@cgl.ucsf.edu] Sent: Thursday, April 24, 2014 5:56 PM To: Hernando J Sosa Cc: chimera-users@cgl.ucsf.edu Subject: Re: [Chimera-users] Multiscale models color Hi Hernando, I don't know of a way to specify colors before making the models. You would make the Multiscale Models surfaces and then: (1) select the chains, Ctrl-click and Shift-Ctrl-click with the mouse, and/or using the top section of the Multiscale Models dialog (the buttons next to "Select chains" and "Extend") (2) when the desired set of chains is selected, either use the main Chimera menu "Actions… Color", or in the middle section of the Multiscale Models dialog ("Act on selected chains") click the square color well and use the Color Editor to change the color I hope this helps, Elaine ---------- Elaine C. Meng, Ph.D. UCSF Computer Graphics Lab (Chimera team) and Babbitt Lab Department of Pharmaceutical Chemistry University of California, San Francisco On Apr 24, 2014, at 2:22 PM, Hernando J Sosa <hernando.sosa@einstein.yu.edu> wrote:

Hi, How do you control the color of the surfaces generated by the multi-scale models command "Make models" so that the user can specify the color associated with each chain? I tried to follow the documentation on how to do this but still I don't get it right as I didn't manage to change the colors assigned by default. Thanks Hernando