Setting the task to the status "done / check it" we would like to be able to specify the time after which this task (without activity, change of status or adding a comment) will be automatically closed. Such functionality would allow to automatically clear the list of tasks done and not closed by the client / team member. The date would be set (eg. 3 days from now - in accordance with the agreement / arrangements) and the task would automatically go to CLOSED after that time.