Open your Gmail account
Click on compose to start an email thread and click the FreeBusy widget below to propose a meeting time.
Pick times & dates that show all attendees to are available in. When it says ALL in green it means all attendees on the email thread are available for a meeting.
If you haven’t already, enter the attendees you’d like to meet with to the To: line of the email. FreeBusy will refresh availability and show available times.
The meeting proposal will then appear in the body of the email.