[MlMt] Changing the default headers displayed?

[Greg Earle]

Is there a way, perhaps via "defaults write", to change the list of 
displayed headers?

 From a cursory glance it looks to me like the defaults are

Resent-From:
 From:
Subject:
Date:
To:

I don't see an obvious way to change that.  I'd like to add

X-PhishMe:

to my list of displayed headers.

Thanks,

		- Greg