I am trying to add a specific custom field to the screen options for a custom post type and have no idea how to do so.
Here is a screen shot to explain:
<img src="http://i50.tinypic.com/20ixnk0.jpg" border="0" alt="Image and video hosting by TinyPic">
I would like to add the custom field similar to the way all in one SEO shows the values. Make sense?