checkbox comments

Hi,
im trying to set shortcut (javascript) to check checkbox selected comment. One by one.
example:
in preferences / annotations  - i have turn on option "show chceckbox in comments list" 
i have 150+ comments in PDF and my goal is press shortcut or run javascript to check just one selected checkbox.
EDIT: and select next comment in comments list.
i belive it will by 5 lines of code 🙂
thank you very much.