I'm not entirely sure where you're getting the Secondary Sections bit from. It could be referring to the fact that Reagents have multiple locations that they can be foraged from? In that case, it's all still the primary locales you just look at the Tags next to the Reagents and apply them appropriately e.g. something says Forest (5) then that's Glimmerwood Grove.
Or are you meaning Blastfire Bog, The Cloud Isles, Dreamwater Depths, and The Strange which are Locales which have requirements you need to meet in order to enter. In that case, there's an explanation for that in the book.
There's no difference between this version and the BOH copies.
And you arrive with no Silver :)