Documentation

Here's a quick example of how add some custom configuration to CKEditor when using the WYSIWYG module.

This was tested on CKEditor 4.3.1 and the WYSIWYG module version 7.x-2.x-dev from 2013-Oct-26.

The "Apply simple source formatting" option in the "Cleanup and output" text format options must be checked for the indentation options to take effect.

Create module:

<?php

/**
* @file
* example.module
*/

/**
* Implements hook_wysiwyg_editor_settings_alter().
*/
function example_wysiwyg_editor_settings_alter(&$settings, $context) {