How to set the check-boxes on the form to be checked by default

If you want to have a form where the check-boxes are pre-checked, you can set it up in the Form editor.

Step 1: Click the pencil icon to edit the Checkbox field:

Step 2: Insert values for each option. Note that the values for the options should be different:

Step 3: List these values in the Default value field (comma separated):

Result: The options on the form will appear as pre-selected: