How can I allow only on-site reservations for a court (kiosk)?

1. Click on the pencil symbol to the right of the particular court in the court overview (under   Settings / Courts).
2. In the opened dialog box you can allow only on-site reservations for this court by ticking the checkbox  “Only on-site reservations possible”.

Now the players can book this court solely on-site (PC/Laptop or Tablet).