This gate just keeps casual visitors out of clinic settings — share the passcode only with the doctor/staff.
Declare a sudden holiday
Covers every day in the range, including any Sundays inside it — instantly shown as closed to every patient viewing the booking page.
Token limits per day
Defaults: 35 tokens for existing patients, 5 for new patients — each counted separately. Change either any time.
Booking window
Same day only
Allow advance booking
"Same day only" hides the date picker and lets patients book only for today. "Allow advance booking" lets them pick any open day up to 3 weeks ahead, as it works now.