SUB TASKS
Configuration
Go to Projects> Configuration>Settings
Under settings, you will find couple of options under Task Management. You can activate the option sub tasks. Click SAVE button to mark the changes.
Later go to the project and select any task. One can find the new option subtask on top of the window.
Upon clicking the sub task button, you will be navigated to a new window were you can create a new sub task for the parent task.
There you can find the task title and the person to whom the sub task is assigned to. Later click on the Add button. One can also modify the sub task via clicking on the edit button.
One can access the parent task from here itself.