Redmine

You can put Keywords into Mails sent to Redmine to change certain values like so:

Project: Project Identifier
Tracker: By name
Category: By name
Priority: By name
Status: By name
Assigned To: By name or login
Custom Fields: By name

There even is a cheat sheet linked at: http://www.redmine.org/boards/1/topics/14609?r=14615

I am looking for a definite list of all supported keywords in a place like the Redmine wiki.
If someone points me to a list (or the part of the source code where the keywords are defined), I'd volunteer to create such a wiki page...

Best Regards
Michael