Hide calendar events that you've declined

We get invited to many calendar events that we end up declining and not joining. It would be great to hide these from Perform to keep us focused on the meetings that we do intend on joining and preparing for.

In this same vein, someone also requested the ability to hide particular events from the Perform calendar list, even if they are ones that they are attending. The use case was putting a private meeting on the calendar like a doctor appointment, which needs to be on their actual calendar, but doesn't need to show in Perform.