You can add checkboxes to an already finished checkbox list, though this is only available for the web or desktop version of Google Docs. To do this, you can follow these steps: • Open the document that you wish to add checkboxes to. • If you wish to add a new checkbox to the end of the list, move your cursor to the end of the final checkbox line then press Enter or Return. Autoformat should create a new checkbox automatically. • If you wish to insert a new checkbox somewhere in the middle of the list, click on the step before the task you wish to add, and then press Enter or Return. Autoformat should add a blank space with a checkbox in front of it, fill the blank space with the task or step you wish to add. • If autoformat doesn’t work, you can add a new checkbox by clicking on the area you wish to put the new checkbox in, then clicking on Format > Bullets & numbering > Bulleted list will allow you to click on the checkbox format that will add a single checkbox. • You can change the checkboxes to checks by right-clicking on them then choosing the check symbol. On a Mac, you can use Ctrl + Click.