If this option is checked, when analyzing for duplicate pairs, Bookdog will ignore duplicate pairs that are in different top-level parent. These are called collections (Safari) or groups (Camino).
This option is useful for someone who might like to keep a few commonly-used bookmarks in the Bookmarks Bar, but also have these same bookmarks organized into their "rightful" place in the Bookmarks Menu or some other collection.
Allowing Individual DuplicatesYou may also mark individual bookmarks as "allowed duplicates". When a bookmark is so marked, it cannot appear as part of a "duplicate pair" after your bookmarks are analyzed. There are two ways to do this: