We use the 'Instructor Availability' screens an awful lot, as the calendar doesn't allow you to view an individuals commitments on one screen.

It would be great if you could add staff holiday directly on this screen - by clicking on the start date, then on the end date, with an option to add a note/half days etc coming up on the 2nd click. To add a single day holiday you'd simply double click and then confirm. This is how AirBnB, for example, updates availability on their calendar, and is very intuitive.

If not on instructor availability, then being able to add holidays directly into the Calendar 2.0 system, would be great.