[Plugin: CKEditor For WordPress] Remove some of the options from the "Format" dropdown

I have a question that is the next step to the answer posted here:
http://wordpress.org/support/topic/plugin-ckeditor-for-wordpress-how-to-remove-unwanted-options

I have modified my toolbars to remove items I do not want users to have access to. This is working PERFECTLY..

What I need to know is how can I modify one of the toolbar options to limit what items in the dropdown they see.. Specifically I need to remove some of the options from the “Format” dropdown.. (I need to remove a few of the Heading options).

Which file do I need to edit to update this??

http://wordpress.org/extend/plugins/ckeditor-for-wordpress/