Dear Chimera team, I have a problem with coloring different regions of the protein presented as PipesAndPlanks. I know I can change the colors of the SS elements from the menu of PipesAndPlanks. But, this is not what I want: I want to color different regions of the protein with different colors and not to be limited with the colors given to the SS. Before, I had no problem in doing so. I think this problem appeared in the recent updates. Something I noticed and could be related is that to change the presentation from the default chimera to PipesAndPlanks the new presentation assigned the same model# as the original model. I think, in previous versions the new presentation used to be given a new model#. Similarly, if I want to create a map for the model using (molmap) it is given the same model # rather than a new model# as used to be. I run Chimera version 1.4.1 (build 30282) on a Mac OSX 10.4 (PPC). Thanks for help. Ibrahim -- Ibrahim M. Moustafa, Ph.D. Biochemistry and Molecular Biology Dept. 201 Althouse Lab., University Park, Pennsylvania State University PA 16802 Tel. (814) 863-8703 Fax (814) 865-7927