title: Eclipse new plugin Project: Not choosable
body: <p>just an easy quesition but I can't find any answer in this wonderful world wide web...</p>
  
  <p>I just want to create a new <strong>Plugin Project</strong> based on <strong>Eclipse Helios</strong>. Normally this feature should be shipped with this version (Version: Helios Service Release 2 Build id: 20110301-1815) but I can't choose it via "file->new->Project". Do I have sth. to install previously?</p>
  
  <p>Thanks a lot for any help guys ... :)</p>