[Chimera-users] chimera help

Hi, I am trying to show a structural change between two proteins that differ by one amino acid, is this possible with chimera? I was unable to display the transformation I desired, so I looked into other ways to show changes between two overall similar molecules. I found that it is possible to show a change in the surface between two similar molecules, but I am unable to utilize the function because it requires a different file format. I would like to do both... that is, to show the conformational change from one protein to another, as well as show the change in surface from one protein to another, but I keep hitting these road blocks. Any help would be highly appreciated! Thanks, Terrance Chiang