title: set Flash.keepMessage to true in JSF 2 configuration file is possible?
body: <p>This line: </p>
  
  <pre><code>FacesContext.getCurrentInstance().getExternalContext().getFlash().setKeepMessages(true);
  </code></pre>
  
  <p>Can be changed by another code in any configuration files? I want to avoid typing this line whenever I need to redirect from code whit this line:</p>
  
  <pre><code>     FacesContext.getCurrentInstance().getExternalContext().redirect("errorApp");
  </code></pre>
  
  <p>Regards.</p>