Opt-out instead of opt-in! With the update from 20.02., the checkbox must now be removed instead of checked in order to override a timetable rule. The corresponding checkbox moves from the bottom to the top.
To deactivate a rule, click Ctrl + F11 in the timetable module or on the menu item "Timetable">"Define timetable rules". The rule overview now opens. Click on the rule you want to deactivate and uncheck the checkbox in the rule window. Deactivated rules are highlighted in gray in the overview.
Timetable rules can be used to restrict booking options for certain people, fixed times or places. PC CADDIE only takes active rules into account. This means that you do not have to delete the rules for the winter season, but only deactivate them. If you want to reactivate a rule, you simply need to check the box in the relevant rule again.
Further information and practical application examples can be found on the timetable rules wiki page.