I have a view-based NSOutlineView and want to show different contextual menus if user right-clicks the header or one of the expanded items.
I dropped two NSMenu's to the storyboard file. When I connect the menu outlet of the HeaderCell to one of the menus I got an "Unsupported Configuration" warning and the menu is never shown. (The same warning for the Table View Cell)
I am using Swift.
Can somebody guide me to the right direction?