2d pattern on a 3d model

Hello. I have an assignment of a shop drawing for stone laying.
I have a revit model and had to make detail lines so for each stone, patterned them with the spacing and so on. It is possible but unparametric and cumbersome. I tried to think of how to use Grasshopper with rhino inside but the thing is the walls are not one part. Is there a way to pattern in a view, not on specific geometry? revit 2021.1.7
A-05.pdf (1.5 MB)
sample wall.rvt (6.6 MB)

Creating a Model Pattern will allow you to Align as needed in a Revit View.

PyRevit is a popular tool for creating patterns

Thank you. Never used model patterns in this way. Peace.