Teachers wants to share same time slot with a condition

[Liviu Lalescu]

I would prefer to keep as it is now. Select a slot with X, and slots marked with X are red. Usually, I don't work with colors. But I would like to keep the behavior on colors.

[pervezshaikh]

Most of the X stands for "no", It is hard and can be overlooked easily if X stands for "yes" at few places.
But the problem of algorithm is still there.

[Liviu Lalescu]

For activities occupy max time slots from selection, for instance, the constraint is on the selected slots. So I see the constraint excluding some of the X slots. Similarly for the activities max simultaneous in selected slots.

[Volker Dirr]

There is no problem with the algorithm. It is fine with that constraint. I checked it with the sample file which you uploaded a few days ago.
If you don't think so, please upload your latest fet file here or sent you latest fet file to Liviu or me.
Also write a small sentences why you think it is wrong.

[Volker Dirr]

[...] Select a slot with X, and slots marked with X are red. [...]

yes, of course that is fine. But there is also green color, so some guys think that you marked the green slots. so i suggest no color instead of green; of course keep the red one.

[Liviu Lalescu]

I prefer a unified notation, with both colors on the table.

In fact, also for teacher not available times constraints, the slots which are in fact selected with X are red and are not available. The user does not select green slots in no constraint.

[pervezshaikh]

....
Then you should tag that activities and allow it only in the first hour.
...

1) I wanted to tag activity no. 184 of Mr. A and activity no. 91 of Mr. B as "1" to make them during first hour. But there was a problem. Activities 184, 185, 186 of Mr. A and activities 91, 92, 93 were all tagged as "1". Note that every activity is 1/3. So it could not work.

2) I could achieve it this way. "A set of activities occupies max time slots from selection" was used. From all activities of Mr. A, "max occupied" was chosen 1 during first hour. From all activities of Mr. B, "max occupied" was chosen 1 during first hour. I marked 184 of Mr. A and 91 of Mr. B were placed during first hour but on different days. I do not know whether top of the list activities would be selected always. I placed another constraint of "A set of activities has same starting time (day+hour)" for activities 184 and 91. It worked.

[Volker Dirr]

1) you need to choose "subactivities" in the fet menue if you want to change a single subactivity. if you have choosen "activity", that will change all aubactivities of that activity.
2) yes, that is also possible.