There are multiple Revit add-ons for almost everything because Revit on its own is useless, hence the 3rd Party Add-on and Library community get a lot of support from the users. The case is almost the opposite in Archicad. It is a very capable tool on its own and the users generally have an aversion to supporting 3rd Part Add-ons and libraries.
Now to the solution; Archicad Wall Accessories. These are some of the easiest GDL elements to create and can result in adding or removing anything from the wall element. So you could very easily have the accessory replace your external block skin of your wall composite with an array of blocks and mortar. This includes treatments (details) around openings and at corners and edges.
It is so easy to script this content that I gave a presentation on it in 2019 at BiLT conferences in Australia and Scotland titled "Create Archicad Accessories in 10 minutes".
The benefit of creating this yourself is it gives you the power to not only create your own rules for the geometry but also define what you want to extrapolate from the model by scheduling the accessories; you set the parameters and how they are formulated.
Creator of Cadswift's parametric GDL libraries
Creator of Infinite Openings and Component Catalogues
Push the envelope & watch it bend