Hi,
I've been looking for examples all night and haven't found anything that quite ticks all the boxes. I am looking to create this 
I have been trying to do it with a Source List (NSOutlineView), a datasource and delegate. Is this right? But can't work out how to load in the selected panels. How do I get the right hand side to change based on the menu item selection (are these panels or views?)? Does anyone have any good examples?
Cheers Gareth