I'm wondering if it's possible to validate the data entered into one metadata field against data entered in another field -- similar to how on some websites they make you type in your password twice before creating an account (to verify that your passwords match).

We want to make sure data entered into one field is correct so we want to make a user enter it in twice.

I realize this would be a duplicate field essentially. If someone has any other ideas on this I'm open to hearing them!