With today’s Optional attendees in Google Calendar, good old GCal now lets you make invitees to your events optional. Maybe you have a group of people that need to come to an event (like an office meeting) and others who are not required to attend, but can opt to show up if they have time and interest. Or maybe your get-together has differing levels of interest or involvement like a project planning meeting or Xmas party.

No need to turn this feature on, you will see the new link for “Make some attendees optional” as soon as you begin adding invitees.