Within Teamwork, you can manage individual tasks directly from the Calendar area of your site.
Note: Collaborators cannot edit tasks in the Calendar view.
You can access the Calendar via the More option from the main navigation and selecting Calendar from the pop-out menu.

Click the filters button in the top right of the calendar to open the filters pane.

In the Options subsection, select by Duration as the task display option.

This will update your calendar to display tasks individually (in blue) across the total number of days they are running.

Editing task dates and duration
When using the task duration view in the calendar, you can use drag and drop to quickly edit individual tasks.
To change when a task occurs, click the task bar and drag it to a new position in the calendar. This will automatically update the task's start and due dates.

You can also change the duration of a task by moving the due date forward or back. Click and drag the right-hand side of the task bar to a new end date position.

For more information, see: Calendar