In your page class, you will need to remove the HTMLEditorField and add a TextAreaField.

class Page {
function getCMSFields() {
$fields = parent::getCMSFields();
$fields->removeFieldFromTab('Root.Content.Main', 'Content');
$fields->addFieldToTab('Root.Content.Main', new TextareaField('Content'));
}
}

See http://doc.silverstripe.com/assets/classes/default/TextAreaField.html for more information on what you can do with the TextareaField.

You should be aware that this will insert whatever you type into the TextareaField straight into your template, without validation. It's fine if you know what you're doing, but if you're handing this over to a non-technical author you'll want to make sure they use the draft site tool!

Elijah: Usability applies to programmers, too!

Do you perhaps want to add a check to CMSMain, where it calls getCMSFields(). If $fields returns null, have an error along the lines of

"getCMSFields returned null on a 'Page' object - it should return a FieldSet object. Perhaps you forgot to put a return statement at the end of your method?"

hi,

i can't seem to get my wysiwyg disabled, i know this is tedious but can anyone please post what files they edited and the exact code they wrote. thanks very much. i hope somebody would be kind enough.