[Sirtel]

Originally Posted by JeffGeorge

I'm assuming this won't prevent me from creating a virtual library, but I'm probably dense because I still don't know where I would flag it as Yes/No at the book level.

You edit it either directly in the book list or in the Edit Metadata window (you can use the bulk option too, if you want to flag a bunch of books at once - right-click on Edit Metadata and select Edit Metadata in bulk).