Dear Al, In the "Mutiscale Models" Windows , will you please tell me what does it mean for the item "Range"? I am looking forward to getting a reply from you. Smith -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://plato.cgl.ucsf.edu/pipermail/chimera-users/attachments/20170123/8b94f0f3/attachment.html>