Build your project with as many layers as you need. Break big ideas into smaller plans and executable tasks, all with your keyboard. You're not confined to the project structure you're given.
(and it's really fast, too)
When you only need a couple of helpful attributes per task, just add them from some pre-defined attribute data types. If you need a lot of attributes, design your task properties as complex as you need them. Add and remove at any time.
(and children automatically sum-up to their parent tasks, too)
Get the whole picture by looking at many levels of your projects in order, all at the same time.