It would be helpful if I could create calendar events right from my person's calendar page.
Currently, changing my availability/status to away is not obvious – it took me quite a while to figure out that create calendar event also affects my availability. There was no button to change my status on my person's page, and on my my person's calendar page there is no button to create an event, either. So my first assumption was that the calendar prototype does not yet implement this in the GUI and I should give up. Only by accident I discovered there is a button in the calendar application.