Redmine

One feature from Trac that I found extremely useful was the ability to see a unified diff of a series of changesets merged into one page. I'm not sure if this functionalityh is available in redmine, but I was curious if it did exist and I wasn't hunting the documentation well enough.

Essentially I'm looking at something like this, where I can give a start and stop revision #:

http://trac.edgewall.org/changeset?new=150%40trunk&old=140%40trunk

Is this functionality currently available in Redmine as an undocumented feature or plugin? I'm having a bit of difficulty finding it.