Select surfaces for your sensor grid

Hi,
I would like to add surfaces inside a room geometry and taking them into account for a daylight study with the basic room’s floor, but I’m not able to generate point for sensor grind above those faces (look the screen of my model); I’ve added them as face-floor in the HB Model component but this doesn’t change the grid. I would like to share the GH file but as new memeber i can’t do it; can someone help me?

Thanks.