title: R quantmod chartSeries: Add multiple TA overlay to single chart
body: <p>I'm trying to add multiple TA's to my main chartSeries chart, and they all add below instead of overlaying each other. Is it possible to add multiple TA overlays?</p>
  
  <pre><code>chartSeries(GE, theme="white",
  TA="addTA(GE1);addTA(GE2);addTA(GE3)") 
  </code></pre>
  
  <p>I've tried with the variables below;</p>
  
  <p>on=1 and
  overlay=TRUE</p>
  
  <p>I'm looking for all the TA's to be in a single chart.</p>
  
  <p>Thank you in advance for your time.</p>