Dynamically adding to NSStackView and Adding Scrolling Functionality - swift

Question

Like the title says, I am trying to dynamically add NSTextViews and NSImageViews to a NSStackView. First, I added a Scroll View using IB and that made a hierarchy of Bordered Scroll View -> Clip View -> Main View -> Stack View (Vertical). I want to be able to dynamically add views to the stack view and be able to scroll through them all. I used autolayout on the Bordered Scroll View.
The problem: I tested this by adding 100 NSTextViews and incrementing their y-positions to stack up on each other. But, I cannot scroll to the top. I have been trying to understand this for a couple days but I just cannot figure it out. I cannot scroll and see all the text views, but when I increase the window size I can see more of them. TIA! `
import Cocoa
class ViewController: NSViewController {
var xLoc = CGFloat(0)
var yLoc = CGFloat(0)
#IBOutlet weak var mainView: NSStackView!
#IBOutlet weak var belowMainView: NSStackView!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
for index in 1...100 {
var txt = "Num: \(index)"
setup(text: txt)
}
}
override var representedObject: Any? {
didSet {
// Update the view, if already loaded.
}
}
func setup(text: String){
let tempTextView = NSTextView(frame: NSMakeRect(xLoc, yLoc, 320, 10))
tempTextView.append(text)
tempTextView.isEditable = false
tempTextView.translatesAutoresizingMaskIntoConstraints = false
// mainView.addSubview(tempTextView)
belowMainView.addSubview(tempTextView)
yLoc += 20
}
}
// Adding an append function to textView functionality
extension NSTextView {
func append(_ string: String) {
self.textStorage?.append(NSAttributedString(string: string))
// Scrolls to end of document if it is out of view
self.scrollToEndOfDocument(nil)
}
}`