distinguishing sent messages in the Buffer Menu

[James Leifer]

Hi,

After gnus has been running for a while I have many, many drafts.
They all appear in the Buffer Menu (C-x C-b) alike:

    58                595  Message      ~/News/drafts/drafts/58
    59               1007  Message      ~/News/drafts/drafts/59
    60                874  Message      ~/News/drafts/drafts/60
    61                761  Message      ~/News/drafts/drafts/61

Some have been sent and some haven't.  My problem is that I can't
easily distinguish between these cases looking at the list.  Of course
if I try to send one that has already been sent, gnus queries this.
But is there any way to make it more visible which drafts have been
sent? E.g. 

    58                595  MessageSent  ~/News/drafts/drafts/58
    59               1007  Message      ~/News/drafts/drafts/59
    60                874  MessageSent  ~/News/drafts/drafts/60
    61                761  Message      ~/News/drafts/drafts/61

Any suggestions?

While I'm at it, is there any way the recipient or subject could
appear in the list too?

Regards,
-James