Dear Ishu, You probably just need to get Chimera 1.7 (daily build or snapshot). PipesAndPlanks has been improved significantly since the production release (1.6). The newer versions are available here: <http://www.cgl.ucsf.edu/chimera/download.html#daily> <http://www.cgl.ucsf.edu/chimera/download.html#snapshots> If you use the Help menu, it should match your downloaded version pretty well. If you view the manual on the web, it might be for a different version than what you have downloaded. List of changes since the production release: <http://www.cgl.ucsf.edu/chimera/docs/relnotes/snapshot.html> 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 Oct 23, 2012, at 2:06 PM, Ishu Saraogi wrote:

Dear Chimera Users:

I have been trying to makes pipes and planks in different colors for a co-crystal structure. I want each protein to be a certain color. The user manual says that I need to select "No colors" in the pipes and planks menu. However, this button is deactivated in my program. Has anyone else had that problem and is there a fix? I have tried using axes/planes command but it does not give me loops and sheets that I also need.

Any advice will be greatly appreciated. Thanks! Ishu