Core Data & IB in prefs pane

FROM : Rick Mann
DATE : Thu Mar 27 21:04:53 2008

I'm trying to use what I learned yesterday about Core Data in a System 
Prefs pane. I created an Entity data model, and then tried to add an 
NSTable and some buttons and wire them up the same way I'd seen the 
Core Data Entity tool do it in IB. But, it didn't work.

So I tried using the Core Data Entity tool to let IB do it, and it 
disables the Add and Remove buttons.

The only difference I can spot is in yesterday's project, the File's 
Owner is an NSDocument. Today, it's a PrefsPane.

Is it possible to use this stuff in a prefs pane? What am I missing?

Thanks!

--
Rick