As its name suggests, this attribute adds a checkbox to your item. This field can especially come in handy for items representing tasks (e.g. for all of your to-do lists), so you can check them off once they’re done.
Before you add the Checkbox attribute, you will need to choose whether the default for all items in the folder will be an empty checkbox or a checkbox with a checkmark.
With the help of this attribute, filters, and other Customization options, you will be able to separate your done tasks from your yet-to-be-completed tasks with more ease.