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<div align="left"><font face="Arial" size="2"><span style=" font-size:10pt">Hi Dan</span></font></div>
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<div align="left"><font face="Arial" size="2"><span style=" font-size:10pt">1.</span></font></div>
<div align="left"><font face="Arial" size="2"><span style=" font-size:10pt">You can certainly load two files into Jmol --not sure if you can do that within PP, but I'd say 
so since as far as I know you can specify any script.</span></font></div>
<div align="left"><font face="Arial" size="2"><span style=" font-size:10pt">Just do</span></font></div>
<div align="left"><font face="Arial" size="2"><span style=" font-size:10pt">&#160;&#160; load files &quot;file1.pdb&quot; &quot;file2.pdb&quot;</span></font></div>
<div align="left"><font face="Arial" size="2"><span style=" font-size:10pt">or, if you want them straight from the PDB:</span></font></div>
<div align="left"><font face="Arial" size="2"><span style=" font-size:10pt">&#160;&#160; load files &quot;=1ABC&quot; &quot;=2ABC&quot;</span></font></div>
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<div align="left"><font face="Arial" size="2"><span style=" font-size:10pt">2.</span></font></div>
<div align="left"><font face="Arial" size="2"><span style=" font-size:10pt">For the rotation, I cannot advise about the exact format of the transform matrix, but there is </span></font></div>
<div align="left"><font face="Arial" size="2"><span style=" font-size:10pt">&#160;&#160; rotateSelected</span></font></div>
<div align="left"><font face="Arial" size="2"><span style=" font-size:10pt">which you could apply after selecting only one of the models. Also, check about 
quaternions, which are precisely for these matters (but I am unable to understand yet :( )</span></font></div>
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</span></font></div>
<div align="left">&nbsp;&nbsp;</div>
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