alwaysUsesMultipleValuesMarker
A Boolean value that indicates whether the tree controller always returns the multiple values marker when multiple objects are selected, even if the selected items have the same value.
Declaration
var alwaysUsesMultipleValuesMarker: Bool { get set }Discussion
Setting this property to true can increase performance if your application doesn’t allow editing multiple values. The default is false. This property is observable using key-value observing.