When adding a booking using the 'Add booking' button in the Diary/Floorplan or Run Sheet page, upon selecting a booking type, the duration will auto-fill with the default Max Duration setup in the settings for that booking type. When the number of guests is entered, the duration will then dynamically change to reflect the numbers added in the "Rules dependent on number of guests" section in the booking type.
E.g When adding a ‘Dinner’ booking, the max duration setup in the Availability section in the settings is set to 3 hours and so will auto-fill this time.
If 2 guests are then added, the duration will automatically change to reflect the ‘Rules dependent on number of guests’ for that booking type. In this case, the max duration for 1 - 4 guests has been set to 1hr 30mins and hence the duration will automatically change to reflect this.