title: How to give a combined title for subplots?
body: <p>I want to give a combined title to my subplots, instead of titling each plot individually.
  e.g;</p>
  
  <pre><code>for pl=1:4
        subplot(2,2,pl)
        title('Test') 
  end
  </code></pre>
  
  <p>gives me this:<a href="https://i.stack.imgur.com/1UUg5.jpg" rel="noreferrer"><img src="https://i.stack.imgur.com/1UUg5.jpg" alt="enter image description here"></a></p>
  
  <p>If I use this:</p>
  
  <pre><code>figure
  title('Test') 
  for pl=1:4
        subplot(2,2,pl)
  
  end
  </code></pre>
  
  <p>I don't get any title.</p>
  
  <p>I want my output like the following:<a href="https://i.stack.imgur.com/YxBEP.jpg" rel="noreferrer"><img src="https://i.stack.imgur.com/YxBEP.jpg" alt="enter image description here"></a></p>