Hi Moumita, Although the whole morph can include several structures, each part is only between two structures. So if your morph is A -> B -> C -> D where each letter is a structure, "morph start" should only describe part A -> B. Then "morph interpolate" is used to describe B -> C, then again to describe C -> D. This is described in more detail in the manual page for the "morph" command: <http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/midas/morph.html> Best, 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 Apr 26, 2013, at 11:53 PM, Moumita Dutta wrote:

Hello chimera-users,

I'm trying to use the option morph conformations from the command line and cannot specify more than one molecule with the command morph start.

How to use the morph start command for more than two molecules ?

Thanks for any help.

Moumita