Start and due dates for tasks

I know we can assign a date to each task, and the task will appear in the planner on the date that it is assigned. I typically use this assigned date to log when I should begin working on a task. It would be helpful to add a due date for each task so that I can see what date I need to complete the task by (especially for large projects). Would it be possible to add a due date feature to each task?

App:
Web app