For NX 9.0 we've added that capability (Crosshatching based on the Material assigned to the Components of an Assembly) when creating a Section View in PMI. I don't know when and if this option will be added to the Drawing-based Section views but I'll try and find out and will post an update here.
John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Industry Sector
Cypress, CA Siemens PLM: UG/NX Museum:
To an Engineer, the glass is twice as big as it needs to be.