I have set up a button (N=1 & Y=2) that a user will check if the "Billing Address" is different than the "Contact Address". Right now the button is in place but isn't linked to any type of functionality. That is where you all can help me.

As the default, I would like the "Billing Address" fields to mirror the "Contact Address" and the button to be set to "N" - then based on the user actively selecting the button to "Y", the address fields would clear for the user to enter the new information.Any/all suggestions are welcome. I appreciate your help in advance. Thanks!

There is an easier, more elegant method. You already have two fields "Contact Address" and "Billing Address". Create a calculation field called, say, "Mailing Address"...

If(IsEmpty(Billing Address), Contact Address, Billing Address)

The "Mailing Address" field will return the Contact Address unless an entry is made in the Billing Address field, in which case it will return the Billing Address. If you wnt to use the Contact Address again, clear the Billing Address field.

Automatic -- no buttons to click.