When finalizing my state (PA) return I am presented with a message to be sure to attach a copy of my 1099-R as I held state taxes on my 401(k) withdrawal.

When finalizing my state (PA) return I am presented with a message to be sure to attach a copy of my 1099-R as I held state taxes on my 401(k) withdrawal.  How do I do this?  I do not see it listed in the Review Forms List (if I go to the delete a form screen) so I assume it is not included when filing state.  It is in the Federal Return list.