prevent multiple events at the same time

There’s nothing in Pro, but here’s a snippet that should do what you want (almost?): https://gist.github.com/stephenharris/cc8171c932ed5aba83c747e5c321dea6

It limits by venue (i.e. can’t have multiple events on at the same time at the same venue) – so you might need to alter that behaviour.

Thanks very much, i will try this.

Sorry, can’t tell what’s happening at line 24?

Sorry, copy-paste error there. Fixed now ??