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  What happens if I place a course on a slot that's not free?

Two courses cannot be superimposed manually. If you place a course in a slot already occupied by another course, the latter is de-positioned according to the option of your choice:

• By de-positioning the other course: the course is de-positioned - you can find it in the display Timetable > Course > List.
• By placing the other courses on hold: the course is de-positioned and set aside in the window Pending (to display this window, tick the corresponding box in the top right-hand corner - the pending courses can be moved directly on the grid from this window by click and drag).
  
  
  
  
  
• By adjusting the place: the de-position course is automatically re-positioned elsewhere on the grid (you can then extend the slot search to include optional unavailability - the slots "painted" yellow on the timetable).

To superimpose courses that are to take place simultaneously, you must create a complex course.