Using Sitecore 6.4, and I would like to customize the available buttons (eg Bold, Spell Check) given by the Rich Text Editor. 

For clarification, I am referring to the popup editor displayed when you choose "Show Editor" from a particular Field's menu. I do not want to customize the editor on a per Item basis, rather globaly.

At first I had thought modifying the standard telerik config file (\sitecore\shell
\Controls\Rich Text Editor\ToolsFile.xml) would work, however it does not seem to affect a change. 

[Another post](https://stackoverflow.com/questions/2490004/sitecore-rich-text-html-editor-profile-set-global-default) mentioned opening the Content Editor and modifying the Html Editor Profiles node, however that does not exist in version 6.4.

Any help greatly appreciated.