Explain how qgis doesn’t allow multiple layers. I have a project open right now with 6 layers. That to me seems like “multiple layers.”

And how would that concept even apply to postgis? A postgis query can operate over many tables.

And there are a variety of open source tools that allow multi-dimensional data structures. That’s multiple layers in multiple dimensions.

So I’m hoping, if there’s some aspect of a GIS layer I don’t understand, he can explain it. Qgis totally supports multiple layers in the sense that most people think of it.

He doesn’t have to divulge “secret information” to do this. If he is referring to some aspect of the qgis architecture he can just say so. Qgis is open source, their GitHub repo is clean and well documented. Im merely asking for him to explain why it handling multiple layers is somehow not really handling multiple layers.