Those grades are User-defined Ridges in the context of a Mesh.
Unfortunately, there is no separate Pen for them and no setting to turn them off. Only the ridges resulting from the triangulation of the surface may be hidden.
Loving Archicad since 1995 - Find Archicad Tips at x.com/laszlonagy
AMD Ryzen9 5900X CPU, 64 GB RAM 3600 MHz, Nvidia GTX 1060 6GB, 500 GB NVMe SSD
2x28" (2560x1440), Windows 10 PRO ENG, Ac20-Ac28
