Drag-and-Drop Operations
Drag-and-drop operations enable you to change an appointment time interval, if an appointment is moved along the time cell area:
If you press ESC before dropping the appointment, all changes are cancelled and the appointment returns to where it used to be.
You can also change an appointment’s type to all-day and vice-versa by dragging the appointment between the all-day area and time cells.
In grouped view, when different resources are represented by different columns, dragging the appointment to another column automatically changes the associated resource.