Ability to add custom buttons to TinyMCE?

Hi there. What you need to do is go beyond the basic setup of tinyMCE and create your own theme_tinymce_theme function and setup all the buttons you wish to include in the toolbar manually. Read the install file that comes with tinymce.module for instructions on how to do this.

Then, in your tinymce_theme function you can configure the buttons however you like. If you want to make it so users can use certain stylesheet classes, include the 'styleselect' option in your toolbar. Here's how I have my theme file setup, it might help you put together your own:

function phptemplate_tinymce_theme($init, $textarea_name, $theme_name, $is_running) {
  switch ($textarea_name) {
    // Disable tinymce for these textareas
    case 'log': // book and page log
    case 'img_assist_pages':
    case 'caption': // signature
    case 'pages':
    case 'access_pages': //TinyMCE profile settings.
    case 'user_mail_welcome_body': // user config settings
    case 'user_mail_approval_body': // user config settings
    case 'user_mail_pass_body': // user config settings
    case 'synonyms': // taxonomy terms
    case 'description': // taxonomy terms
      unset($init);
			return;

    // Force the 'simple' theme for some of the smaller textareas.
    case 'signature':
    case 'site_mission':
    case 'site_footer':
    case 'site_offline_message':
    case 'page_help':
    case 'user_registration_help':
    case 'user_picture_guidelines':
      $init['theme'] = 'simple';
      foreach ($init as $k => $v) {
        if (strstr($k, 'theme_advanced_')) unset($init[$k]);
      }
      break;
  }

  // Add some extra features when using the advanced theme.
  switch ($theme_name) {
    case 'advanced':
		// Editor Configuration
		$init['lang'] = 'en';
		$init['plugins'] = 'contextmenu,drupalbreak,advlink,advimage';
  	$init['browsers']  = "msie,gecko,opera";
		$init['content_css'] = "/themes/*/editor.css";
		
		// Cleanup
		$init['extended_valid_elements'] = 'a[href|target|name|title|onclick],embed[*],object[*]';
		$init['cleanup_on_startup'] = "true";
		$init['remove_linebreaks'] = "false";
		$init['convert_fonts_to_spans'] = "true";
		$init['inline_styles'] = "true";
		$init['remove_linebreaks'] = "false";
		$init['entity_encoding'] = "numeric";
		$init['apply_source_formatting'] = "true";
		$init['fix_list_elements'] = "true";
		$init['fix_table_elements'] = "true";
		
		// Toolbar Config
		$init['theme_advanced_toolbar_location'] = "top";
		$init['theme_advanced_toolbar_align'] = "center";
		$init['theme_advanced_path_location'] = "top";
		$init['theme_advanced_buttons1'] = "bold,italic,underline,strikethrough,separator,justifyleft,justifycenter,justifyright,justifyfull,separator,formatselect,styleselect";
		$init['theme_advanced_buttons2'] = "bullist,numlist,separator,outdent,indent,separator,link,unlink,separator,hr,image,drupalbreak,separator,removeformat,code";
		$init['theme_advanced_buttons3'] = "";
		$init['theme_advanced_styles'] = "Indent=indent;Item Title=item-title;Sub Category=item-sub-category;Item Description=item-description;Item Date=item-description-date;Item Modes=item-description-modes;Left Column=left-column;Right Column=right-column";

     break;
  }

  // Always return $init; !!
  return $init;
}

tinyMCE is a very customizeable editor. You might want to check out all the available options at their site: http://tinymce.moxiecode.com/tinymce/docs/reference_configuration.html

closing all 4.6 issues

Thanks for the code #1