I'm trying to clear all events of my forum group mentions, so I went to this page:

https://subeta.net/events.php#/home

And I scrolled to where it says "Forum Group Mention - clear all" and clicked clear all. But it didn't clear all of my forum group mentions. It seems to clear less than ten of them. I just tried again and my total events went from 691 to 682 so it seems to be clearing a tiny chunk of them at best...

Unfortunately, "clear all" does not currently clear any events that don't appear in your sidebar events tab. (If you weed some events from the listing that appears in your sidebar, you'll subsequently be able to mass-clear more using "clear all".)

Thank you for letting me know how it works! I guess we're just doomed to pick thru them by hand for the moment.