[RAc]

Kindle and other e-readers also add "internal" bookmarks which aren't pdf bookmarks. So I understand the distinction and prefer that the name for such a feature remain simply "bookmark". But I'm not opposed to some additional explanation in the help documentation.

So that implies that there are (at least) THREE different types of bookmarks to distinguish between and deal with - MSP bookmarks, "native" pdf bookmarks and reader specific bookmarks?