How to use tokens that are array items?

We have a web form (D7) and trying to format an email using the User's first name. The User profile fields is using the AddressField module for standardization of name/addresses. While Webform allows a single depth of a token, as in: %profile[name]

It does not allow for the structure to get to the field address, something like: %profile[field_address][und][0][first_name]

How can I get WebForm to pickup a field that is an array sub-item, in this case several levels down on the User profile?