Stupid Sharepoint Trick.
I’ve gotten this request more than once with Sharepoint 2007. It’s how to customize the Rich Text editor within the ‘Pages’ feature. And you have two easy ways to do it.
One way is to go into your layout file in Designer, right-click on the PublishingWebControls:RichHtmlField field you’re looking to configure. Choose ‘Tag Properties’. You’ll have a tool pane open with just scad’s of options for configuring your Rich Text field. AllowFonts, AllowHeadings,AllowHTMLSourceEditing, etc. It’s pretty self-explanatory.
Another way to go is by defining the styles available in the dropdown. By adding some rules to the bottom of your CSS file using the .ms-rteCustom-XXXXX declaration, you can give the end users the ability to use your predefined styles.