title: Gnuplot: position of key elements
body: <p>With </p>
  
  <pre><code>set key left top
  </code></pre>
  
  <p>I can set the position of the legend. However, I would like to set each title separately in such a way, that in the following example the legend is on one line: left the first and right the second one.</p>
  
  <pre><code>plot sin(x) title "Sinus", x title "X"
  </code></pre>
  
  <p>How can I do this?</p>