title: Allow a single Matlab instance to run
body: <p>Whenever I double-click a <code>.m</code> files a new instance of Matlab is opened.<br>
  Is there any way to tell Matlab to keep every files in a single istance?</p>
  
  <p>Matlab 2012a, Windows 8.</p>
  
  <p>I only found an old guide that applies to XP. <a href="http://www.mathworks.com/matlabcentral/newsreader/view_thread/303080" rel="nofollow">http://www.mathworks.com/matlabcentral/newsreader/view_thread/303080</a></p>