You can complete a task on the task itself or in its “Properties” window.
Option 1: Directly on a task
1 - Click on the “Tick” circle before the task name to complete the task.
2 - Once a task is completed, it will be moved to the bottom of the tasklist of that task.
Option 2: In the “Task Properties” window
1 - Open the task properties window by clicking onto it.
2 - At the top left corner of the window, you will see the “Tick” circle to mark it as completed.
3 - Once a task is completed, it will be moved to the bottom of the tasklist of that task.

