title: Atom/Sublime like Multiple selections in Jupyter
body: <p>How can I select matching keywords in a Jupyter notebook via a keyboard shortcut? For example, in the Atom/Sublime editor I can hit <code>cmd + D</code> on a mac (or <code>Ctrl + d</code> on Windows) while the cursor is over 'var' and each time I do that the next 'var' will be highlighted. I can then type the new variable name and 'var' is replaced with whatever I typed. </p>
  
  <pre><code>var = "hello"
  print(var)
  print(var)
  </code></pre>
  
  <p>Is there an equivalent in a Jupyter notebook?</p>