Enabling Spellchecker in Magento WYSIWYG editor

A little bit of a puzzling one, and not appearing to be much information about this, seemingly straight-forward task. Enabling the spellchecker plugin in TinyMCE in Magento’s admin. Here’s how you do it; In js/mage/adminhtml/wysiwyg/tiny_mce/setup.js, find “theme_advanced_buttons3”, and update it as follows; theme_advanced_buttons3 : ‘tablecontrols,|,hr,removeformat,visualaid,|,sub,sup,|,charmap,iespell,media,advhr,|,ltr,rtl,|,fullscreen,|,spellchecker’, Then find “var plugins” (should be a handful of lines […]