When in month view, I would like any sign to show if an event has the buzy status or not. That sign should be visible both directly in the month view, and when asking the full list for a day if there are more than 10.

Users will also probably want this for weekly and daily views.

This is critical for me because Google Agenda creates by defaults non full day events as buzy, and, my phone goes to silent mode during buzy events. It frequently happens I forget to remove the buzy status, and I miss calls (and customers) only because of this.

To not bother other users, this feature could be optionnal (activate in settings).

Not sure which logo or icon could be intuitive; for my use, I would like a crossed bell, but it would probably not be good for other people. Google image with buzy icon proposes a variety of things with a man, a clock, a suitcase ... But maye also think about an airplane, a cross in a circle, a STOP sign ...