Orthographic graphic module: GridlinesDrawingWrapperEntity.dll
Rule set graphic module: Grid Line
Draws vertical gridlines at the intersection of X planes and Y planes (on the X-Z and Y-Z axes). This graphic module applies to grid planes in the model. You can use this module in elevation and isometric views when drawings need to show vertical lines at grid intersections.
For an example workflow using this graphic rule, see Apply Grid Labels to Elevation Views.