sidebar only with mailboxes containing unread emails ?

[Gregoire Favre]

Hello,

I have a great number of different mailboxes and I would like to use the
sidebar feature of mutt-kz but it's not so good if I have to scroll lot
of screen in order to get to the point where I see mailboxes with unread
messages.

Is there a way to do this ?

Thank you very much,