TOC in Folder in FM Book

Greetings,

Is it possible generate a TOC for the documents that are in a Folder? By "Folder" i mean the logical container that is possible to add in the Book pane. I know you can solve this by using sub-books to a top-level book but the disadvantage with those is that, (a), you don't see the sub-book's documents and, (b), updating the top level book does not update sub-books.

Kind regards,

Mats