Not on same day activities

[nl65]

I have multiple activity_tags assigned to each activity.
It is not allowed for 2 activities who share an activity_tag to be scheduled on the same day for a student group. 

I am aware I can use "min days between a set of activities" constraints -  but this requires generating enormous number of constraints. Is there more elegant way ?

[Volker Dirr]

you might use:
fet -> data -> time constraints -> students -> max hours daily with an activity tag (with max 1 hour with 100%)

this is easier to enter, but generating might be slow. using min days constraints will generate faster.

[nl65]

Implemented min days (grammatically) - works fine! Thanks!