[imp] DIMP search options / search multiple folders?

[liamr at umich.edu]

When you perform a search in DIMP,  there's a UI element labeled  
"Folders:".. but it only seems to display the folder you're currently  
viewing.  It looks kind of like Apple's Mail.app search UI, but  
Mail.app lets you choose "All Mailboxes" or "/current folder/" (eg  
"Inbox").

Does / Should the "Folders:" UI element do anything?  Is it possible  
to search multiple folders at the same time within DIMP?

Liam