[Dovecot] Shared inbox

Hello all,

I am using dovecot with maildir storage.  I want to share a inbox of 

one user with another user. I read the page http://wiki.dovecot.org/SharedMailboxes but it does not deal with inboxes. I tried a test of a non-inbox folder and it worked great.
The inbox does not have a .inbox folder instead its kindof spread through the root of the mailbox. Should I create a folder say .shared-inbox with a symbolic link to cur new tmp in other-guys-mail-folder? What about index files, uid list, and keywords?

Thanks