It would be great to be able to specify global holiday dates across the whole of Elvanto. Then we could enable "Global Holiday Breaks" for a Group Category > then each of the groups could be set to inherit/follow this rule or not.
For example, many/most of our small groups do not meet during school holidays. This causes great problems when it comes to a fortnightly group that doesn't meet, but when they do come back, they are then out of sequence and therefore do not receive the reminders for group attendance.
Therefore, if "Global Holiday Breaks" is followed, the group will meet the very next appropriate day after the holidays end - e.g. the first Thursday after this and then two weeks after that.