FullCalendar - Day View editable area

I use FullCalendar.

In Day View I woul开发者_StackOverflowd like to be able to specify an editable area - as shown in white in the screenshot between 13:30 and 20:00.

So I should not be able to drag a session outside this area or modify the brown session (outside of the white area)

Since the original issue, I'm now using background events to manage the visual effect of editable areas.