Milestoner
Kanboard Tool for calculating subtask dates and utilizing API to add to tasks.
Windows Version

Settings>Task/Steps Setup…

- Add subtasks and set the duration and dependency for each subtask, as well as assignee.
Admin>Credentials

- Enter Credentials
Admin>Update User List

- Updates users for Assignee field, grabs users from your Kanboard
Calculate

Calculate>Admin>Send to Task
- Sends to task on your Kanboard
Calculate>Admin>Remove all Subtasks from a Task
- Removes all Subtasks from a task