All about the WordPress Admin area customization.

How to Change Default Tag Meta Box: Make It like Category Meta Box

How to Add a Custom Post Status to Quick Edit

I think you can find a lot of good information about status creation in WP. But I didn’t find any notes about how to add a status (custom status, you just created) into inline post edit.

How to Save Nav Menu Items Individually (instead of saving the whole menu)

Use <Tab> to Indent in WordPress HTML Editor

Post Preview Button for WordPress Fullscreen TinyMCE / HTML Editors