Hello, Philip!
There is no exact option in the Hotel Booking plugin to achieve this, however, we do have a workaround which may work out for you. First of all, you will need to create each room/spot as an accommodation type, as well as have the whole camp also created as a separate accommodation type (9 accommodations types in total). You will need to sync your accommodation types calendars between each other, however, you may still need to control the process manually in order to make sure everything works in tact. Check this article for more details on how to do that.
Regards,
Andre