The visual editor is nice when pages and posts are simple, but when you try to add special text such as php code to a page then the visual editor oftentimes has to be deactivated to edit the page. This plug-in allows you to set which posts should not use the visual editor by setting a custom field ‘deactivate_visual_editor’ to true. This allows the visual editor to be deactivated for the given post/page, but remain active for all others.

Deactivate Visual Editor

A simple plugin-in that deactivates the visual editor for a specific page or post by a custom field set by the author.

cyberduck

Looking for a fast and easy way to add custom buttons to the WordPress Visual Editor? Look no further. With this plugin you can easily add your own custom buttons in the Visual Editor, as well as the HTML Editor. You can then add HTML code to the button, either as a wrap (before, after) or as a single block. On top of that you can, from within the plugin, set the CSS so you can view the effect of the button directly in the Visual Editor.
The plugin comes with a large number of ready to use button icons, but you can also add your own.
Visual Editor Custom Buttons. The perfect plugin for customizing the Visual Editor, add special features and simplify the content update process for the novice user.

Visual Editor Custom Buttons

This just works, simple and elegant. Create an editor toolbar button and define what it should insert in html.

Excellent tool for customizations in the editor

Visual Editor Custom Buttons lets you add custom buttons to the Wordpress Visual Editor.

Deactivate Visual Editor vs Visual Editor Custom Buttons