In WordPress, I'm trying to create a Custom Post Box that will allow one post to be manually connected to another post.
The easiest way to illustrate this request was to mockup what I would like the final Post Box to look like. That mockup can be viewed here » http://cl.ly/3hI3
The Post Box needs to resemble the "Categories" Post Box, in that it has tabs at the top and checkboxes.
Each tab at the top of this Post Box needs to be a Post Category (as illustrated in the mockup.) If I could manually control this so that the tabs were managed by a Custom Menu (ie. "Post Connections Menu"), that would be ideal.
The checkboxed list of items needs to be posts that have already been categorized to that specific category.
Thank you very much for any help / insight you can throw my way!