We are new users having set just up registration times for the first occasion. What seemed to be the case was that, while a registration time could be initially created for one or more days of the week as a batch, if times subsequently needed to be edited, there was no option to do this in batch by day, but only by registration (start) time. The latter function is not usable if you have registration times on different days that share a common start time, but not necessarily duration, as all details from the first edited occurrence will then cascade to all days with that start time: as a minimum changing the friendly name and also potentially duration/end time to incorrect values. There is thus no option, other than to edit each registration time individually; the ability to edit by day of the week would get around this..
