title: How do I insert (not overwrite) a byte in hexl-mode?
body: <p>All of the <code>hexl-insert-</code> commands overwrite the byte at point.  It makes no difference whether <code>overwrite-mode</code> is on.</p>
  
  <p>I need to actually insert a new byte at point, moving everything else down.</p>
  
  <p>How can I do this in emacs?</p>