However… what I really want is a “negative” filter. Our facility rents out space to “external” users, and that one category is the only one we don’t want to show as our own events.
So consider this a request (again) to add support for a negative filter. In the meantime, I’ll see if I can select all/most of the other ones and make do with that.
That is a great idea for a feature on that widget. If you would like, you can vote for that on our UserVoice page. In the meantime, we do have a snippet that should help. Try the snippet found in this thread: