Some more information on this, the cached tinyMCE gz file is stored in
wp-content\uploads\js_cache
Delete this file.
The newly generated file will pick up the changes mentioned in my previous post.
You need to edit this file
wp-includes\js\tinymce\themes\advanced\editor_template.js
Search for
theme_advanced_blockformats:"p,address,pre,h1,h2,h3,h4,h5,h6"
Edit this code directly for your desired options. You’ll need to do some cache clearing before you see this come through in the editor, but it *will* work.
