title: UIStackView and ViewWithTag
body: <p>i am trying to add a UIbutton to a specific StackView.</p>
  
  <p>what i have come up with is </p>
  
  <pre><code>viewWithTag(2)?.addSubview(button)
  </code></pre>
  
  <p>is it wrong to implement it this way? or is there any better way to implement it?</p>