On Oct 16, 2009, at 12:08 AM, Jean-Francois Menetret wrote:

I have a few questions about volume tracer: Is it possible to add marker(s) in an existing marker set ? Is it possible to change the marker note of an existing markers ?

Hello, Yes and yes -- it would be a silly tool if those were not possible. Next to "Marker set" at the top is a little menu from which you can choose the name of the marker set you want to work with. Then when you add more, they will be in that set. How you add more depends on your "Mouse" settings (can be shown on the dialog with "Features... Mouse mode options" in the Volume Tracer menu). The marker note (show in dialog with "Features... Marker notes") goes with whichever marker is selected. You would just Ctrl-click to select the marker and then add a note, or if it already has one, change it to something else. If more than one marker is selected, you can change all their notes at the same time. Volume Tracer documentation http://www.cgl.ucsf.edu/chimera/docs/ContributedSoftware/volumepathtracer/fr... 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