The ability to set the Patterns(Projection), Transparency(Projection) & Patterns(Cut) of sub category's in the visibility graphics window dialogue box. Right now seems like you could do this to the whole category, but a user would only be maybe want to change the settings for only 1 or 2 elements on not the whole category. IE set the transparency of a GM mass for a zone as part of a plan, elevation, section...
On side note assigning a material to an object, the requires transparency only shows transparent in a 3D view, not the flat views. maybe have a tick box in material "transparent in flat views"
Posed question in the forums: Object transparency in Plan, Elevation or Section (without Override Graphics in View)
