Hi, I am trying to change the text that shows up in the format select box in the html editor (paragraph, h1, h2 etc) to make it clearer to the client what they should be using for sub headings etc. I have made the following change to HtmlEditorField_Toolbar:

new HtmlEditorField_dropdown("FormatBlock", "formatSelect", array(
				"<p>" => _t('HtmlEditorField.FORMATP', "Normal Paragraph", PR_MEDIUM, '<p> tag'),
				"<h2>" => _t('HtmlEditorField.FORMATH2', "Main Page Heading", PR_MEDIUM, '<h2> tag'),
				"<h3>" => _t('HtmlEditorField.FORMATH3', "Sub Heading", PR_MEDIUM, '<h3> tag'),
				"<h5>" => _t('HtmlEditorField.FORMATH5', "Gold heading style", PR_MEDIUM, '<h5> tag'),
				
			)),

but I still get 'Paragraph', 'Heading 1', 'Heading 2' in the dropdown.

Any ideas out there on how to sort this?

The text you've changed is what it falls back to if it can't find anything in the lang\en_US file (or whichever language file it's using).

Change 'sapphire/lang/en_US.php' to match the changes you want. Starts on line 243 I think.