I am using the Ubuntu document viever Evince. Lately, I found out how to add custom keyboard shortcuts for the program. I was searching for a way to add a shortcut e.g. for View / Best fit (also available as a button). What I found was the Keyboard shortcut page which describes how to setup shortcuts using gconf-editor. That worked as described. However, once I restart my system the shortcuts are gone. How can I set them permanently?