Texture sets state should be saved in scene files and accessible via scripting

After loading a scene ALL texture sets are enabled/visible. This drives me nuts in big scenes as I create sometimes very sophisticated setups and have several variants of a design in a single file. I thought I can write a script doing that for me, but no chance as what I found out not even Substance Painter itself can “touch” the visibility of the texture sets in a scene. It is assumed that after loading the user always wants all of them to be enabled. That is really poor. Every property the user can modify while the application is running should be saved in the scene file and fully restored after a program restart (or a scene reload)!