Third Column
by Marcus Downing on WordPress.org

The option to show three columns
Add the option for a third column on the Edit Post and Edit Page screens. This is useful if you have a lot of boxes on your edit screen, from custom taxonomies and plugins.
Also adds a pair of mini columns underneath the edit boxes, giving you space for more small boxes.
Active installations40+
Weekly downloads
17+112.50%
Version2.0
Last updated7/10/2014
WordPress version3.8
Tested up to3.9.40
Tags
adminedit