I am using GravityForms for accepting bookings.
I need the admin to be able to approve / disapprove these bookings and then, export them into a JSON format and use jQuery FullCalendar to render these as a booking calendar.
How can I add an appropriate field to the entries? And how can I add approve / disapprove action to the entries?
And how can I get a list of entries of a form for approved entries?