FormIt Builder + Custom Validator?

I am trying to use a custom validator on the Formit Builder component (an addon to Formit).

Does anyone know how or where to set a custom validator?

Thanks!

Hi Zuriel,
I've probably alreday covered this via email with you, but just in case someone else is asking the same question in the forums and stumble upon this, you can check out the documentation here

http://modxrevo.datawebnet.com.au/adding-your-own-custom-validation

As always, all feedback welcome!

Thanks!