Castalia IDE plug-in is part of the XE7 Bonus Pack
Castalia is an amazing IDE productivity tool. If you haven't checked it out, you should. And now you can as part or your RAD Studio or Delphi XE7 purchase by September 30th. Marco shares some excitement about it on his blog:
http://blog.marcocantu.com/blog/2014_september_free_castalia_xe7.html.