title: Playframework 2 - Add flash on a flashed mvc.Result
body: <p>Is there a way to add new data in an already set flash scope without erasing the previous data set ?</p>
  
  <pre><code>Redirect(routes.Application.home).flashing("success" -&gt; "OK").flashing("but" -&gt; "BUT")
  </code></pre>
  
  <p>results the same as :</p>
  
  <pre><code>Redirect(routes.Application.home).flashing("but" -&gt; "BUT")
  </code></pre>
  
  <p>I could do <code>flashing("success"-&gt;"OK", "but"-&gt;"BUT")</code> but I add the last flashed data in another object. Flashing data in a single call would require to rewrite a lot of things...</p>