title: How to control one of multiple instances of a prefab?
body: <p>My "game" read a file XML, identify some elements and instance him at runtime. This instances is of a prefab.
  So, I have a loop with a variable "ins" that create the instances:</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false">
  <div class="snippet-code">
  <pre class="snippet-code-html lang-html prettyprint-override"><code>ins = (GameObject)Instantiate (this.MyPrefab, position, Quaternion.identity);</code></pre>
  </div>
  </div>
  
  I would like, for example, to click on a instance and change its color and not on all instances.</p>