Never mind about that. The main useful function is for the municipal buildings. I have failed to think of a use for that code with the other building groups.
I doubt if the AI will build Hotels. As it is, they don't build normal industries. I don't recall seeing a Hotel or the like seeded, perhaps that has something to do with this setting. But, it wouldn't surprise me either if the building group 04 cannot be seeded. If you try it out, let us know what happens. I'm trying to finish up my re-vamp of Warrington Wire, so will resist getting distracted for now.