Chris created a nice little tip/tutorial over at Revit Elemental... This tutorial goes great along with my EIFS Tutorial from last year...
Aligning hatch patterns on a curved surface
Hatch patterns can be manually positioned on a wall to suit brick coursing or other setting-out requirements. Normally you do this in an elevation view or 3D view using either the 'Move' tool or the 'Align' tool.
If you have a curved surface (like the one shown here), it is not possible to adjust the vertical lines in an elevation view or 3D view with the above mentioned methods.
Here are the steps you need to follow to adjust curved hatching...
