Playing around in general helps, too.
Time to synthesize what I have been saying. That tutorial file has cytochrome c inserted in it now, and there is plenty of room to practice scripting. See what you can select, see what you can make it do, have some fun with it.
Push this button ->
my script:
"select all ; wireframe off ; ribbons ; color purple ; select HEM; ribbons off ; spacefill on ; color red ; select all ; move 360 0 0 0 0 0 0 100 5 30"