@QB-Renovations0 . I do not connect Schlage locks with Airbnb though so i dont know how well it works with single or multiple locks and I have seen reports here of limitations/issues for some hosts.
Under the Schlage app you can add either Homes or locks using + button in right hand corner. We always add a home first. I am not aware of a limit, only on codes per lock which is 100. In this way I can see via its Dashboard all the locks at once, edit them in the same place, notify guests, etc.