I create a directory with the views. sections – subsections – products.
1. I added in the material type section field “Entity reference”
2. In the field settings are offered to choose a view, but right there. I created, here are the settings: https://yadi.sk/i/wRDw6Pukx2kK3
3. In the field settings in the material indicated this view.
4. Created node1, and node2, with reference to it. So in the subsections do not appear. Apparently not with the views configuration.