How about
```Ruby
:only => [:edit, :update_mark, :create, :add_extra_mark,
          :next_grouping, :update_overall_comment, :expand_criteria,
          :collapse_criteria, :remove_extra_mark, :expand_unmarked_criteria,
          :update_marking_state, :note_message, :update_overall_remark_comment]
```
Or
```Ruby
:only => [
  :edit, :update_mark, :create, :add_extra_mark,
  :next_grouping, :update_overall_comment, :expand_criteria,
  :collapse_criteria, :remove_extra_mark, :expand_unmarked_criteria,
  :update_marking_state, :note_message, :update_overall_remark_comment
]
```
Same applies to `:except => [...]` and the changes in `lib/benchmarking/submission_files/results_controller.rb`