Dear Amit,
You could select the metal ion (Ctrl-click on it) and then use Movement Mouse Mode (in menu under Tools... Movement).  In that tool, you would change mode to "Move selection" if you want to use the mouse to move the metal only.  To go back to moving the whole structure, change back to "Normal."

This will not necessarily make a reasonable structure... it will just leave the metal wherever you put it.

I hope this helps,
Elaine
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Elaine C. Meng, Ph.D.                       
UCSF Computer Graphics Lab (Chimera team) and Babbitt Lab
Department of Pharmaceutical Chemistry
University of California, San Francisco

On Oct 23, 2012, at 1:26 AM, Amit Jaiswal wrote:

Dear Sir /Mam,

                    I am new to Chimera and thus facing problems in inserting Metal in my protein. I am using the Build structure command in Chimera but I am unable to move the metal from one place to the other. Please guide me out in fixing the metal.

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