Thunderbird and Imap (in Off-topic)

Does anyone know how to get Thunderbird to check for new mail in multiple Imap folders?

I think you can make Thunderbird check the inbox every couple minutes, but I don't think you can make it check multiple folders on your imap every couple of minutes.

I made the folders I wanted thunderbird to check sub-folders of Inbox.

It's like watching God talk amongst Himself...

Imap server is courier, so every folder is already a subfolder of inbox.
Problem is that it apparently only checks inbox for new mail by default.
I've found that for each mailbox you can click properties and there add it to the list of mailboxes to check, but that's not that convenient if mail folders are created on the fly by my .procmailrc ;) I guess it will have to do for now.

Maybe Outlook in imap mode might be more functional? ;)

bartjan@zarniwoop:~$ apt-cache show outlook
W: Unable to locate package outlook
E: No packages found
bartjan@zarniwoop:~$