I should know this one, but I want to make a perforated metal panel, with actual holes, either as a system panel, independent wall type, but I don't want to go to the trouble of editing the elevation profile and add in a bunch of holes on every wall, and a surface pattern doesn't quite far enough. I know there has to be a way to handle this as a wall or panel type.
A perforated ceiling is not as big a deal, but I am going to do some renderings for this and want something good looking for it.
Thanks for your time.