Time is one of our most precious resources. Despite their necessity, meetings tend to vary in importance for different attendees. John might be really interested in his team’s weekly meeting, whereas Jane, who is working on a unrelated project, may want to skip it.
Guests’ roles in meetings tend to vary as well. Some people have to be there to lead the meeting or help make decisions, whereas others are gathering information they may be able to digest just as well via the notes. Without knowing which attendees are crucial and which are optional, it can be difficult to know which meetings you really need to attend.
That’s where Google Calendar’s new “Optional attendees” feature comes in. With a couple clicks, you can openly communicate the importance of a meeting for each attendee. Click on the “Make some attendees optional link” above the guest list and then toggle the role of each attendee by clicking the icon next to his or her name. So far, this feature has helped us more effectively manage our own time on the Calendar team — we hope it does the same for you.
Optional attendees in Google Calendar - Official Gmail Blog