Delete all unplaced cards
If you have nearly finished your timetable, but there are still some cards that are not placed in timetable and you want to remove all those cards from timetable completely, you can do it this way:
Go to menu Options -> Advanced. Type following in the Advanced field:
!deletependingcards
Then click OK.
Note:
All already placed cards will stay. Program just change the definitions of the lessons for classes and teachers in a way that there will be no unplaced cards, so basically decrease the counts of periods per week.