Restricting 2 activities occurrence on the same day

[bharatstank]

Hello,

Lecture 3 hours is divided into 2 Hour + 1 Hour.
How to ensure that Lecture (2 hour) and Lecture (1 hour) does not happen on the same day. These are conducted on any other day

Thanks
Bharat

[Volker Dirr]

modify the 95% weight into a 100% weight if you add an activity.
modify the min day constraint if you added already. You can modify all at once.
i suggest to read also the manual:
http://www.timetabling.de/manual/FET-manual.en.html