title: Narrow buffer, using org-match-sparse-tree?
body: <p>I would like to filter the buffer in Org-mode to only those headings that match certain tags.</p>
  
  <p>I tried <code>C-c /</code> followed by <code>tag1&amp;tag2</code>. But instead of narrowing the buffer, Emacs just highlights the asterisk next to each heading that has those tags...</p>
  
  <p>How can I change this so that Emacs actually narrows the buffer to those matched headlines?</p>
  
  <p>Thanks!</p>