Is "selectAllow" supported?

[Buhungiro]

I want to allow users to select only some defined dates and times.
all other areas on the calendar should be grayed out so the user can not select/create a new event.
with the js fullcalendar they have selectAllow. I tried to use selectAllow in the config but js on the browser doesn't recognize the function to run.
is there a way to do this with filament-fullcalendar