Subtask is defaulted with parent data
So that you can create several sub task inside a task quickly without reentering each time all data
This is my suggestion to. I would be nice to implement this feature
AdminAaron Wolf (Admin, Task Coach) commented
Note: the latest bugfix is in process to eliminate the problem with incompatible dates for parent and subtasks (it will change so that they are independent but the sorting of composites will take the dates of subtasks into account).
This request remains valid for the idea of proposed dates or even set dates matching parent for new subtasks.
I also think that having the priority set to match parent would be a good option, and other data possibly too.
However, there's functional WORKAROUND:
Copy the parent task and paste as subtask