What I'd like to see is a way to put custom error messages into forms made in the CMS.

For example, if you're making an email field for a contact form, when you click "More options" there would be a text box for each validation rule the field has (in this case "required" and "email"). You could type in your own error messages for everything that can go wrong, to make sure they're in tone with the rest of the content, or leave them blank to use defaults.

Is there a quick hack to achieve different error messages without going through the Validation.js or forms directory ? (For a Multilingual site).