title: Rotating 3D plots with the mouse in multiplot mode
body: <p>When I do the following in gnuplot ...</p>
  
  <pre><code>set terminal x11
  splot sin(x)
  </code></pre>
  
  <p>I can rotate the 3d plot with the mouse</p>
  
  <p>On the other hand, if I do the following</p>
  
  <pre><code>set terminal x11
  set multiplot layout 1,2
  splot sin(x)
  splot cos(x)
  </code></pre>
  
  <p>I can't rotate sin(x) or cos(x) even though I would love to. Does anybody know if it is possible to create a multiplot with plots that you can rotate?</p>