title: NetBeans - How to show all Swing components in a JFrame?
body: <p>I'm making a Swing GUI with NetBeans, using the built-in form maker, which works quite well. </p>
  
  <p>However, if I accidentally put the wrong panel on a form, I have no way to delete it, or select it again. </p>
  
  <p>Likewise, if I want a button to open a new window, say, a file chooser, I don't know how to add that file chooser to the form, but not have it appear until the button is pressed. </p>
  
  <p>Does anyone have any experience with the NetBeans Swing form builder? This seems like a common thing to have to do, but I don't see how to do it. Am I missing something?</p>