Zoho Projects allows you to break your existing tasks in sub tasks in order to gain much deeper insights into the progress of a task. Now, you can use outdent / indent button to break tasks in to subtasks or summary tasks based on your project needs.
Here's a short video about subtasks in Zoho Projects
Note: Subtasks feature is available only in Enterprise and Premium paid plans of Zoho Projects.
Import subtasks along with your existing tasks while you import your MS project files into Zoho Projects
This assigns tasks to the selected users and quickly imports all the tasks along with its subtasks from your MPP file into Zoho Projects.
Go to Tasks & Milestones tab
Mouseover to find Indent button click the task to make it a sub task
Mouseover to find Outdent button and click the subtask to make it a summary task.
Few points to remember when you create a subtasks:
You can view subtasks now as part of your task dependency view. Subtasks gets be displayed if and only if all its parent tasks are displayed.
You can view subtasks as part of your gantt charts. The open / closed subtasks are represented as yellow / brown colors respectively on the gantt chart.
Create a new project template add tasks along with subtasks and save this template for your future projects.
Here's a view of subtasks as part of the project template :