I have two questions: 1) Is there a way for chimera to display the x-y-z axes? For example, for a pdb file, all the x/y/z coordinates are referenced to the molecular coordinate system. In the chimera screen, we can rotate the molecules. I want to know the orientation of the molecular coordinate system in the laboratory/chimera coordinate system, but cannot find a way for the x/y/z to show up on the screen. Many other protein visualization software (VMD, Molw, etc) have this feature. 2) by default, the z coordinate point out from the screen. often i would like to see the protein with its z direction in the plane of the screen and pointing up. tools-viewing controls-side view allow me to get what i want, but the image is only the protein projected onto the y-z plane. but it would be nice if there are two side view panels, one with an image in the y-z plane, one with an image in the x-z plane. Thank you! Xiaoyun Chen