It would be great if we could create a new Subtask from the New Task modal. I.e., we select the Parent Task when making it.

Sometimes I know I want to create a Subtask for a Task I am not currently on. Rather than having to change my view off what I am doing to find the Parent Task, I wish I could open the New Task modal and choose "make Subtask of..." and pick the Parent task from there.

Equally, it can slow you down having to find the Task in the hierarchy instead of searching when creating.