Checklist + Milestone Roadmap

1. There should be very easy way to glance current chosen tasks, no matter where user is navigating -> pin tasks on the page always stays there
2. There should be multi level tasks + Description
3. Tasks I should be able to organise inside roadmap, with set milestones, tasks are independently sortable
4. There can be projects and one for view all tasks page to see the tasks
5. Checked tasks stays at its location