Cocoa disable tabItem at index
07:41 17 Apr 2017

I have a NSTabViewController which has two NSTabViewItem. I want to disable second tab. 

class MainTabViewController: NSTabViewController {

// Properties
var data : [String: AnyObject]?


override func viewDidLoad() {
    super.viewDidLoad()
    let tabItem = self.tabView.tabViewItem(at: 1)
    tabItem.isSelectable = true


   }

}

as tabItem.isSelectable is a get only property, how can I disable and enableNSTabViewItem item.

cocoa swift3 nstabviewcontroller