The Scheduled tab contains a list of all Scheduled Task records associated with the current contact:

The grid shows each scheduled task record in the colour associated with the task type as well as the icon of the task type.
The following buttons are available to the right of the grid:
Add a new
scheduled task linked to the current contact record.
Update the
selected scheduled task. This opens the Task form. Double clicking a row will
also drill down and open the Task form.
Delete the
selected scheduled task. The user will have to confirm this operation. The
scheduled task is removed from the grid after the operation
completes.