How to swipe tasks for quick actions?
Swipe a task to the left, and then three action buttons with different background color will appear:
Move a task from one list to another.
Delete the task and change due date.
Change the task's due date, time, reminder times, and recurring task options.
Note that if you swipe a task to the left until the taskbar becomes blue, then you can set the due date, time, reminder time, and recurring task options.