Hi @csj2,
Unfortunately, I don't know of a way to do exactly what you're after in Canvas. Canvas has two calendar options:
- A calendar for each course. I think that's your current method, and it means you'd need to create your event three times (one per course).
- An account/subaccount calendar, where someone with Canvas admin access could create a calendar item visible to all users with courses in that account. This is great for events that are school-wide, but it's likely TOO global for your scenario.
What you'd ideally need is something in between the current options. You could submit this as a new idea for Instructure to consider in the future, but I think for now option #1 is going to be your best bet.
Hope this helps a bit, even if it wasn't the answer you were hoping for right now.
-Chris