There is no way to assign different cut patterns to Wall layers via the CAD Export settings. You can put Cut Patterns on a separate layer, but you cannot change the pattern.
Do you have the desired patterns available in Revit? If so, you could set up a View just for exporting, and override the cut patterns you use for Revit and substitute the ones you want to see in CAD.
David Koch
AutoCAD Architecture and Revit User
Blog | LinkedIn
