Requested by the user josemgs here: https://lalescu.ro/liviu/fet/forum/index.php?topic=4482.0

When placing an activity on day d, all the activities with the same subject from day d must be at the same hour.

The comments of the subjects: "MOR=x" (without quotes) means the maximum number of occupied rows for a subject.
							"MAR=y" (without quotes) means the max activities in a row for a subject.
							"mAR=z" (without quotes) means the min activities in a row for a subject.