bmsterling

This plugin adds more buttons to the non-visual editor view for creating/editing posts/pages
Currently adds: 
* h1 
* h2 
* h3 
* h4 
* h5 
* q 
* cite 
* sub 
* sup 
* dl 
* dt 
* dd
<h3>Credits</h3>
Copyright 2012 Benjamin Sterling (benjamin.sterling@kenzomedia.com)
This program is free software; you can redistribute it and/or modify 
it under the terms of the GNU General Public License, version 2, as 
published by the Free Software Foundation.
This program is distributed in the hope that it will be useful, 
but WITHOUT ANY WARRANTY; without even the implied warranty of 
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 
GNU General Public License for more details.
You should have received a copy of the GNU General Public License 
along with this program; if not, write to the Free Software 
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA

Quicktag Extender

This plugin adds more buttons to the non-visual editor view for creating/editing posts/pages

diekleinehexe

This plugin will add a button to both the visual and HTML WordPress Editor panel allowing you to easily insert code for WP-Syntax. WP-Syntax is a syntax highlighting plugin for WordPress which can be downloaded from https://wordpress.org/extend/plugins/wp-syntax/
Usage
<ol>
<li>Select the text you want to have highlighted by WP-Syntax</li>
<li>Click the button pre (WP-Syntax) in HTML editing mode or the icon with colored lines in visual editing mode</li>
<li>Enter the language and starting line separated by a comma. The later is optional.</li>
</ol>

WP-Syntax Editor Integration Plugin

Adds new buttons to the visual and html editor window which allow to use WP-Syntax.

Quicktag Extender vs WP-Syntax Editor Integration Plugin