Allow multi-day event exclusion for dates.
I would love to see you allow multi-day events to allow exclusion for dates. For example a 5 day training that starts on Wednesday and ends Tuesday, excludes weekend days. You could do this the same way you exclude dates in a reoccurring event now.
Jenny Wickham commented
I would also like to see exclusion dates for weeks, not just a once off day that would allow exclusions in the school holidays. I have a client who is using the event calendar for their centre's group activities, but it is currently to hard to set up all the exclusions day by day for each group not running in school holidays. It needs a from and till date.