1. Go to the meeting in question > Click on the pencil next to the estimated travel time which is indicated by a little car. Do note that you can only edit departure addresses of meetings, you are actually attending.
  2. Fill in the starting location for this meeting, e.g. your home address or the location of another meeting
  3. You have the option to set this address as default address by putting the slider next to "Make default meeting location" to "Yes"
  4. Click "Save"