Fields:
  view_editbar = [False, True]
  view_statusbar = [False, True]
  view_toolbar = [False, True]
Conditions:
Limits:
Initial: 
  State: view_editbar=True, view_statusbar=True, view_toolbar=True
Transition: action_editbar
  State: view_editbar=False
         view_editbar=True
  State: view_editbar=True
         view_editbar=False
Transition: action_statusbar
  State: view_statusbar=False
         view_statusbar=True
  State: view_statusbar=True
         view_statusbar=False
Transition: action_toolbar
  State: view_toolbar=False
         view_toolbar=True
  State: view_toolbar=True
         view_toolbar=False
