Can the Properties Shelf be re-merged in 2.8? In Blender 2.8 the Properties Shelf seems to have been split into four different shelves by default, called Item, Tool, Edit, and View. 

Is there any way to merge these back together so that you can just hit N to access them? Currently N only opens the most recent shelf you've used, and you have to physically click open a different one if you want it.
The properties shelves can't be re-merged in Blender 2.8, but you can retain specific elements from each shelf by Shift + Left-Clicking on them and pinning them. The pinned elements will be retained through toggling the whole Properties Shelf with N.