Every task can be edited very simply in this view.
A sort explanation of the fields:
Task is active: Tasks can be switched in an inactive state. Then they will not be considered for time planning, but must not be deleted.
Dynamic start: Means, that the task will be scheduled, when the previous tasks was finished (and eventually some time-buffer was added). Tasks with a fixed start-time will pe placed at exactly this time in your schedule, as long as the are in the future.
Duration: The duration of the task. Any duration can be selected.
Priority: With this option, tasks can be prioritized. The priority is visualized in the task-list on the right side by a colored rectangle.
Task: A short description for the task
Note: A longer notice for the activity.
xx %: To adjust the progress of a task manually