how to link with aribnb with other sites that don't book eack cabin seperately

[Laura4024]

I have 15 listings.  Cabins and tipis.  The other sites we work with book all similar listings together and then just subtract  the availability on that type of accommodation that is booked( queen cabins 3, then 2 then 1 then 0 as people book).  Because Airbnb has each unit listed separately we can not sync them automatically.  How has anyone else solved this problem?