Feature Request: Multi-Page PDF with all Certificates for a Class

VERY MUCH NEEDED: a simple button or function in the Course - Admin tab, which allows to generate a multi page PDF with all Certificates, for the selected students. Would be similar to the "Assign Certificate", just that instead creating individual certificates, it would create ONE PDF with ALL CERTIFICATES which we can easily print. Or maybe you can update the Assign Certificate function to create an additional PDF with all the certificates, when we use the function, and put a small icon link to download this.   this is much much much needed for offline courses, where thousand of students will pursue a course at a location, and we need to print the certificate for each of them. Imagine going one-by-one in the student's profile to print a certificate for a class with 30 students! then.. having about 100 classes - each with a few batches.... that's a pain! Thank you!