[Macpartners] mail 4.1 how to set/use a Sent folder that's local and not on the imap server?

[Aran M. Parillo]

Hi,

A very frustrated Mac Mail user just whacked their entire sent folder 
off the MIT IMAP server not knowing that adjusting her "sent" 
preferences would NOT just simply keep her sent mail on her mac.

I am now trying to see/setup her Mail to store her sent mails on her mac 
but this seems not possible.

I've created a new folder "on my mac" and tried selecting the folder and 
using the "mailbox" pulldown to "use this mailbox for" but it does not 
allow me to select sent.

Is my only option to create a Rule to port a copy of any "sent" messages 
  to this local folder?

Thanks for your thoughts here...

Aran