2020-05-16 nsrt means not same room teachers. Requested by Benahmed Abdelkrim: https://lalescu.ro/liviu/fet/forum/index.php?topic=4448.0 If you add "MTR=0" comments for a room, the teachers' timetable cannot contain a room twice, if the activity has only one teacher and is assigned to a virtual room (see below: 2020-05-20). Warning: the implementation is done best as possible, but it is not efficient. However, it works in practice. 2020-05-17 The comments of the rooms have importance: if we meet "MHPW=x" (without quotes), x means the maximum number of occupied hours per week. "MHPD=y" (without quotes) means that y is the maximum number of occupied hours per day. "MSPD=z" (without quotes) means that z is the maximum number of span (in hours) per day. You should have at least an example file of this kind (examples/TEST_exam+gap+comments-new-4-rooms-max-span-6.fet). The duration of each activity must be 1. 2020-05-20 Comments may contain "MTR=t" - max teachers repetitions, where t can be 0 (examples: examples/EX-4(2sets)_nsrt4.fet and examples/TEST_exam+gap+comments-new-4-rooms-max-span-6.fet). 2020-02-06 As reported by Benahmed Abdelkrim here: https://lalescu.ro/liviu/fet/forum/index.php?topic=4771.0 , it was corrected a crash bug if using the option "MTR=t" (see above) and having activities with duration >=2. 2023-06-14 Crash bug fixed (reported by Benahmed Abdelkrim here: https://lalescu.ro/liviu/fet/forum/index.php?topic=5574.0). 2023-11-29 Updated to FET-6.14.0-snapshot-30-nov-2023-21_03. 2023-12-05 Updated to FET-6.14.0. 2023-12-07 Updated to FET-6.14.1. 2024-11-16 Updated to FET-6.28.0. 2024-11-17 Updated to FET-6.28.1.