Hi Justin, You can freeze/unfreeze just certain models so that only some of them are movable with the mouse. In Chimera we call it "activation" or "deactivation" for motion. This status can be toggled with the checkboxes under the Command Line or the (A)ctive checkboxes in the Model Panel. Both Command Line and Model Panel are in the Favorites menu by default. Activation can also be adjusted with the select command. <http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/mouse.html#activedef> If the models have atoms, you can fit the atoms using the "match" command, or various other methods: <http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/superposition.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 http://www.cgl.ucsf.edu/home/meng/index.html On Jul 15, 2009, at 8:24 AM, justin oppenheim wrote:

Hello:

I am displaying two or more very similar objects, but they are shifted one with respect to another. How can I drag/move/align them on the display to correct for the relative shift?

Many thanks, JO