System wide configuration directories

[Roderick Johnstone]

Hi

Under kde 4 I used to be able to drop various rc files files into 
/etc/kde to provide systemwide customization of the desktop.

Did this change for Plasma Workspaces 5? If so, what is the current 
recommended directory?

 From an earlier post I was recommended to add a script to:
/etc/xdg/plasma-workspace/env
to update the KDE environment.

Previously I was using the directory:
/etc/kde/env
for this sort of thing.

I guessing that maybe the desktop and kde5 apps look in the former and 
kde4 apps look in the latter location. Is that right?

Is there some documentation on these configuration directories as used 
in F22 somewhere that I can look at?

Thanks

Roderick Johnstone