How to assign a role to a task.
Go to the task menu by clicking on the task.
Clicking on the dropdown button shown below, will show you a list of Roles where you can choose one to assign on your task.
After selecting the role, click the "Save and Close" button to save the changes.
Alternatively, when you create a new task, you can type @ to show the list of Roles.
Example: "Remember the milk @Home"