title: App to expand 'Other' category when selected on picker from a form (SwiftUI))
body: <p>I want to provide the user with a list of categories (via picker included in a form) and the last category listed is 'Other'. If the user selects 'Other', the app is to add a field to the form for the user to enter in the new category name (which would be saved for future references).</p>
  <p>I have been able to have the picker list presented:</p>
  <pre><code>Section {
      Picker(selection: $courseIndex, label: Text(&quot;Course&quot;)) {
          ForEach(0 ..&lt; courses.count) {
              Text(self.courses[$0]).tag($0)
          } //ForEach
      } // Picker                    
  } // Section - Course
  </code></pre>
  <p>But I am unable to determine how to have the new field presented for the user to enter in the new category.</p>
  <p>Thanks.</p>