Mirror google docs functionality with building blocks and @ opens the building block menu and navigates to meeting notes > calendar is shown for the day. Selecting a meeting populates the meeting data (title, invitees, attendees, action items, notes, background). From the docs page, the functionality to append the notes to the calendar invite or send the meeting notes out to the attendees, which were pulled directly from Google Calendar. If sending meeting notes via the existing sharing functionality add the capability to send the meeting notes via email (Gmail or the native mail client) and share via Slack