Who's been using the new render layer system "Render Setup" in Maya 2016.5 or Ext 2?

Two questions:
1) Is there any way to re-order the render layers? This defines what renders first, I presume, and it was super easy in the legacy system.

2) Is there any way to re-use collections across render layers? It's kind of a pain to create identical "All_my_Geo" collections in many render layers. Or at the very least, duplicate a collection, since you might want the "same" collection in different layers to have different overrides. Can't figure this one out.