[Koha] Adding Serials to Koha

Hi, I'm using the simple acquisitions module in Koha and I have a question re serials. Once I've created the biblio record and added the first issue, how can I then add subsequent issues without having to create another biblio?!! I know this can be done, I just don't know how to do it. Many thanks, Bernadette ___________________________________________ Bernadette Cassidy Library & Learning Coordinator Allan Bean Centre for Research and Learning in Rehabilitation Private Bag 4708 Burwood Hospital Christchurch New Zealand Tel: (03) 383 9492 Fax: (03) 383 7500