title: What are all the things you can bind to in a NSTableColumn of NSPopupButtonCell?
body: <p>There are quite a few things you can bind to in a NSTableColumn filled with NSPopupButtonCell, I tried looking around for explanations but couldn't seem to find any. </p>
  
  <p><img src="https://i.stack.imgur.com/PsJJF.png" alt="enter image description here"></p>
  
  <ul>
  <li>What are each of the binding under value selection for? For example, what's the difference between "Content" and "Content Values"? </li>
  <li>Why is "Content Objects" grayed out anyways?</li>
  <li>Why do you bind to the table column instead of the Pop Up Button Cell? The binding options available for Table Column containing a TextCell is also different. How is that accomplished?</li>
  </ul>