Hi Matt, There is no facility for copying positions saved with savepos from one session to another session. Chimera does not have any capabilities that involve two sessions other than loading both sessions. That gives you two copies of all your models and is not what you want. One hack to copy positions is simply edit the session file. Search for the line that says "formattedPositions = " then copy from that from the source session file to the destination session file. Here's a trick that mostly does the job without editing files. Open the session with the positions you wish to copy. Bring up the Python shell, menu Tools / General Controls / IDLE. Save a copy of the positions using import Midas p = Midas.positions.copy() Then close this session and open the session you want to copy the positions to. Now to replace all the positions of the second session with those of the first session use Midas.positions = p If instead you only want to replace positions 14-27 for i in range(14,28): n = 'P' + str(i) Midas.positions[n] = p[n] One flaw in this copying method is that it will not copy per-model clipping planes. Tom

I am producing various animation movies. Each movie corresponding to a single session file. Each session has the same models in the same sequence on the model panel, although they may vary in terms of threshold, color, etc. Lets say I have positions P1,P2,...,Pn

How can I transfer positions P3,P14-27 from session1.py to session2.py?

thanks,

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