My comments here relate to Atelier 1.0.137 on Windows connecting to Ensemble 2016.2 FT build 627.
I've been looking at what the Atelier Explorer view (hereafter AE), whose root elements are projects, lets us do with the contents of the namespace that the project is connected to:
versus what the Server Explorer view (here after SE) gives us:
Here are my observations so far.
1. CSP files are only accessible in SE. I'm guessing this is because Atelier's support for CSP files is so new as not to have propagated yet to everywhere that it's planned to cover.
2.


