Recurring Event (multiple) edited

Multiple instances of the same event (hundreds!) -

It specifically targets duplicated recurring events. A last resort would be to clean the events data altogether. There's a third-party plugin ...

Changing an instance of a recurring event for the second time

A pop-up appears with the heading 'Edit recurring event', with these options: 'This event', 'This and following events', 'All events'. I choose 'This event'. ...

How to input reoccurring events on calendar? - Facebook

You would have to do this two times but after you do it the first time, it would be the same thing, just picking the correct days and ...