I am wondering if it is possible to let Zoho project calculate start and end date of parent task from subtasks.

I has created a parent task and 2 subtasks as follows:

- Parent Task #1

      - Sub task A (start 27/04/2016, end 27/04/2016)

      - Sub task B (start 28/04/2016, end 28/04/2016)

Unfortunately, the start date and end date of parent task did not automatically calculate from subtasks. I have to manually set start/end date of parent task.

Is this normal behavior? Or did I do something wrong?

Please help shed the light. Thanks.