I hope this also means we'll be able to create appointment from existing ones from the backend. For example - http://prntscr.com/mZtlLnvpKyD0?

I think this a really important feature. As an admin, if I create a Round Robin meeting type with many team members, two things are critical:

1) I see all appointments that will occur;

2) My team members see the appointment type in their dashboard, but read only (they can't have write/modification access).