assigning activities to rooms

[liquid]

In my generated timetable, there are activities not assigned to a room. Is it so that if I set no constraints for rooms and subjects FET won't assign activity to a room? I would expect that if i don't set such a constraint an activity will be assigned to a free-at-the-moment room.

[Volker Dirr]

Withou a room constraint no room is assigned.

if you need that, because you have room problems, then you should think about using home rooms to students or teachers.
if you don't want to use homerooms for studdents or teachers, then you should think about room constraint for every subject.
if you also don't want that, then you can give each activity the same activity tag (maybe "room"). then add one room constraint for this activity tag. add all available rooms into this constraint.