It's a big help to be able to view my tasks on my calendar by due date.  However, once those tasks are complete, I no longer need them to appear on my calendar they are no longer something that I need to account for in my daily/weekly schedule.

Is there a way to set the task "app calendar" to only display "in progress" tasks?  Or is the only option I have to delete completed tasks, which seems like a poor choice for documentation/reference sake.