title: How to show the current file being edited in the project view in PyCharm?
body: <p>I am using PyCharm Community Edition 4.5.1.  Suppose I have a file open in the editor, and I want to see it in the project view (usually so I can open a sibling file).  How do I do that?</p>
  
  <p>I've googled all manner of "navigate" and "find" and such, and it's always some related concept, but not this one.</p>