Calendar Permissions and View Options

I just had a player go through and I assume click all the big red X's in his calendar. Unfortunately, that cancelled all the events for everyone. Apparently, calendar events have universal permissions.

Can we not allow players to remove events they did not create, please.

I'm not really sure what the Month View rules are... does it show past and future events with in one month of the current date? I think the player saw the old events and an upcoming cancelled event and just clicked the red x to remove from his list. Perhaps include a hide/unhide per user for events, instead of allowing them to delete (cancel) the event. I would say the hide/unhide feature would be only for the default view (Month View) or just leave some kind of +/- collapsible option so the user can retrieve or a checkbox to show hidden events.

Thanks for your consideration.

Excellent suggestions. I've had similar usability issues with the calendar in the past as well.
The month view does show all events for the current month (past and future).