Right now, the gconf and libreoffice configuration keys on desktop profiles are not editable. You can overwrite settings with new values but you can not delete them from a profile, or set a custom value by hand.
This feature is intended to make possible to edit profiles directly from the Fleet Commander Admin interface.
The editor will be a list of keys and values grouped by namespace (gconf and libreoffice). The user can select any key and then edit it by clicking on an edit button or delete it by clicking in a delete button.