From https://support.google.com/docs/answer/11324079?hl=en
Add meeting notes to Google Calendar events¶
From your computer, you can share meeting notes directly to a Google Calendar event.
Add meeting notes to events from Google Docs¶
- On your computer, open a new or existing Google Doc you want to add to an event.
- In the doc, type
@
. - In the pop-up menu, click Meeting notes.
- Search for an event.
- Tip: You can type "next" to select the next meeting on your calendar.
- Select an event. Meeting notes are pre-populated with event details but aren't attached to the event.
- If you’re the meeting organizer: A pop-up prompts you to share and attach the document to your event. To give access, click Share & attach.
- If you’re not the meeting organizer: A pop-up prompts you to share the document. To give access, click Share. The document doesn't attach to the event.
Add attachments and notes to an existing event from Google Calendar¶
- On your computer, open Google Calendar.
- Select an option:
- Click an event and then Take meeting notes. Pre-populated meeting notes with event details are attached to your event.
- Click an event and then Menu and then Attach a document. Selected meeting notes are attached to your event.
- Meeting notes open in a new window. On the right, click Share.