Is there a way to add a to-do template from the list view?

While you can set a default to-do template that will automatically apply to all people as they are added into the system, there is currently no way to mass add a to-do template to people after they are created. You can, however, mass add individual tasks by selecting the records you wish to add the task to form the appropriate list view (Companies, Deals, or People) and clicking the "+ Add Task" button.