auxiliary
The behavior marking this window as auxiliary for both Stage Manager and full screen.
Declaration
static var auxiliary: NSWindow.CollectionBehavior { get }Discussion
Marking a window collection behavior as auxiliary means it becomes auxiliary for both Stage Manager and full screen display modes. Auxiliary windows prefer being shown alongside primary windows.
To set a different behavior in full screen, while keeping Stage Manager auxiliary, set a more specific behavior just for full screen mode (see fullScreenNone).
Use this collection behavior for About or Settings windows as well as utility panes.