So... I've edited HtmlEditorField.php, tinymce.template.js, and all the css files I can find, both in template and other directories...

And I still cannot seem to customize the Styles and Format dropdowns in TinyMCE. I do not remember having this much of a problem in 2.3rc. Editing tinymce.template.js did allow me to remove certain buttons, but the dropdown contents are not listed there. I have searched high and low through .css files for "MsoNormal" etc., with no luck. Where are these styles contained?

Well, after hours, I think I've found it.

/jsparty/tiny_mce2/themes/advanced/editor_template_src.js.

I haven't seen this referenced in any other forum posts... nor the documentation. TinyMCE is such a cornerstone of SS's functionality... so why is it's implementation and documentation so incomplete? It shouldn't be this hard to customize the editor.

Hi Rceee

I've been looking for the solution as well. Thank you for the solution. It worked!
:)

Could either of you clarify what exactly you are changing in the editor_template_src.js file? I'm having a frustrating time figuring this out as well. I've tried a couple of solutions posted in the forums all to no avail. Thanks in advance.

Have you tried editing mysite/_config.php

Add this line:

HtmlEditorConfig::get('cms')->setOption('theme_advanced_styles','Left=left;Right=right');