[MlMt] smart mailbox flagged

[Robert Brenstein]

I’d like the smart mailbox “flagged” to show a submailbox for each 
flag. Ideally, I’d like to see simply the flag icon as the submailbox 
name.

I got as far as

sub mailbox for each unique value of: flags
mailbox name format: ${#flags.flag.#name}

This shows the correct submailboxes but the shown names include all tags 
and flags not just the mailflags. The odd part is that the list of tags 
in the names does not always include $MailFlagBitX and sometimes 
includes more than one.

Note that the default name format is suggested as: ${#flags}
This produces essentially the same submailbox names, just the order of 
listed tags is different.

Robert