Hello all. I'm struggling with roof slabs and am somewhat of an amatuer. In a nutshell, I'm trying to get one hatch pattern for slabs (ie: patio) and one hatch pattern for roofs, but one pattern shows up on both as they are both slabs (plan view). Also, what is the difference between surface hatch and plan hatch? Lastly, I can change the material definition of the slab component, or I can change the hatch pattern in the display properties....do one of these overide the other? It seems redundant. Apologies for a multi-question post.