Hi Jean-Paul, There is nothing exactly like you describe, but you could use the "alias" command, for example: alias group1 #0,1,5-8 alias group2 #2-4 ~modeldisp group1 modeldisp group1 <http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/midas/alias.html> <http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/midas/ modeldisplay.html> One slightly tricky thing is that if you are using commands to toggle "Active" status (whether movable or not), you would also need aliases that don't include the #. The "select" command has two functions, activation for motion and selection, where the former use is signaled by the absence of #. For example, alias g1 0,1,5-8 ~select all select g1 <http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/midas/select.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 Mar 3, 2010, at 4:51 AM, Jean-Paul Armache wrote:

Hello, I am often juggling between different sets that are to be turned on/ off together. Is there a way of grouping maps/pdbs so that instead of turning 20 pdbs on, i could just click on a group to which they belong ? If there is something like that, could you point me to it ? And if not, would it be possible to have it in the Model Panel? Best regards, Jean-Paul Armache