quiz scoring and certificates in course press pro

we have 2 questions
1. We see where you can set up a certificate in the settings menu, but how do you attach a certificate to a course so that the users are emailed it or it appears on screen after course completion.
2. Currently each question generates a pass or fail for the entire unit. How do we set quiz questions to provide a percentage grade? We want questions to count towards an overall grade. For example if I get 8 out of 10 correct, I should get an 80% grade.