For the information of other users – how I solve this question
In my case, I own 3 lodges that can be rented independently or together via HB’s search engine, depending on the number of travelers in the search form.
I rent directly (HB), and via AirBnB / Booking / VRBO.
On AiBnB and VRBO, I have 4 listings: one for each lodge separately and one for the 3 lodges together.
I use the AirBnB feature that links the ads together: when one of the lodges is rented, the ad for the 3 lodges together is automatically deactivated.
I synchronize this listing for the 3 lodges together with the same one on VRBO
I synchronize the ads for each separate lodge via HB
Sorry for the automatic translation
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