an activity at the beginning of the day - how?

[liquid]

We've got a constraint which tries to place an activity (or set of ones) at the end of students' day. How to place an activity at the beginning of the day?

[Volker Dirr]

There is currently no special constraint for that.
But you can maybe use a workaround: (I know: It is more strict)
Add an activity tag "1" and allow only the 1st period of the day (prefferd starting times).
Then tag the activities with that new activity tag.