As DaveP said, Dynamo is effectively the Revit equivalent to LISP. If it's so critical to automate this task similar to ACAD, then it's worth taking...
Thanks but this appears to be as time consuming as: Exporting the floor plan to DWG, setting out the grid lines in AutoCAD using LISP, importing back...
Depending on the scale of the view this won’t read as well as you might like. The thicken line will be centered on the Part rather than offset to one...
