Hello.
Unfortunately, if you are need to make the several specific number of bookings per the same timeslot at same date in SAME CALENDAR, its does NOT possible in any versions of Booking Calendar. Sorry. Please check my suggestion bellow.
A) The ability to book for the specific times only possible in the Booking Calendar Business Small / Business Medium versions (and in higher versions for booking resources with capacity =1). Please note if you will make the booking for the specific timeslot, this timeslot become unavailable for the other visitors for that selected date in current specific calendar.
In lower versions of Booking Calendar possible to make bookings only for restricted timeslots.
You can configure the timeslots selections on the Booking > Settings > Form page. Please use the “shortcode generator” on the right side of that page for the correct generation of the shortcode.
You can use one”timerange” (timeslots) or “start time” and”end time” selections or”starttime” and “duration”of time selections shortcodes or even start time and end time entering shortcodes. Please read more about the booking form fields configuration here https://wpbookingcalendar.com/help/booking-form-fields/
You can test the bookings for the specific time-slots in action on the live demo of Business Small version (which is configured by default for the bookings of specific time-slots) here: https://bs.wpbookingcalendar.com/ Other live demo you will need to reconfigure.
B) If you need to make the specific number of bookings per days, then you need to check the Booking Calendar Business Large version, where is possible to make several reservations per specific FULL date(s) by visitors (not time slots). Please read more about it here https://wpbookingcalendar.com/overview/#capacity
At this version is possible to set capacity of the booking resource, so date(s) in calendar will be available until number of reservations is less then capacity of the booking resource.But in this version is possible to make reservation only for FULL date, not a time slots (time slots in this version only record data in the DB, but do not play any logic in reservation). Please read more info about the booking resources and how to configure them here https://wpbookingcalendar.com/help/booking-resource/
We highly recommend to check this article about different configuration of capacity and availability https://wpbookingcalendar.com/faq/capacity-concept/
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Suggestion! I can suggest that you can create the booking resource with specific capacity in Booking Calendar Business Large version for the each of your times and then have the independent own calendar for the each of your time slot for the reservation. Its mean that your visitors firstly, need to select the times in the selectbox, where will be list all your options.
And only after that select the date and fill the booking form. Its can be look like this: https://bm.wpbookingcalendar.com/select-resource-2/
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