[[!comment format=mdwn
 username="http://joeyh.name/"
 ip="209.250.56.114"
 subject="comment 1"
 date="2014-04-24T18:15:15Z"
 content="""
[[preferred_content]] expressions can be used to do that. Works best if all the files you want have some extension or are in a specific directory.

There are some [[preferred_content/standard_groups]] that might do what you want, particularly the \"manual\" one.
"""]]
