title: Comma-separated values as filter control in Google Data Studio
body: <p>I have a sheet that has a text field that contains strings of comma-separated values.</p>
  
  <p>I'd like to create a filter control that is smart enough to take those comma-separated values and parse them as individual strings.</p>
  
  <p>For example, I have a field called "Colors" and three rows with the following values:</p>
  
  <ol>
  <li>Black</li>
  <li>Yellow, Blue</li>
  <li>Blue</li>
  </ol>
  
  <p>Currently, a filter created from this field contains the following values:</p>
  
  <ul>
  <li>Black</li>
  <li>Yellow, Blue</li>
  <li>Blue</li>
  </ul>
  
  <p>Ideally the filter would contain (and filter appropriately) the following values:</p>
  
  <ul>
  <li>Black</li>
  <li>Yellow</li>
  <li>Blue</li>
  </ul>
  
  <p>And selecting "Blue" would return rows #2 and #3.</p>
  
  <p>This seems like rather basic functionality—am I missing a way to do this?</p>