Joker button

  private boolean isNaviFunctionSet() {
       int n = this.getApplication().getFrameworkAccess().getStorageMgr().getInt(1006, 10, -1);
       return n == 3 || n == 4 || n == 5 || n == 10 || n == 11;
   }

   public void writePersistentViewOptionState(PersistentMenuEntry persistentMenuEntry, int n) {
       if (this.storageAccess != null) {
           this.storageAccess.setInt(1006, this.persistenceKey, n);
       }
   }