Hey, I have been try to customize the periodical entry, by adding the author field among the required fields. I then click Apply and OK. It works fine. Save JabRef. However, after I quit JabRef and open it again, the periodical entry is gone back to the default fields. I have tried with other entries but again quitting JabRef removes all the changes. Am I missing a step or is this a bug? I am using version 2.9.2 on Mac OS X 10.8 (Mountain Lion).