I would like to get a set of random textures to my buildings. All my building will get an attribute, so I know what kind of material I need to assign to each building. I would like to assign my rule to multiply buildings, and choose a random material texture inside my texture folders. Let’s say I got an brick building, it should randomly choose from 5 different brick textures. If I use a random search inside my brick folder, it will assign random textures to my tiles inside 1 building. If my folder contains 2 textures 1 yellow brick and 1 red brick, one building will contain both textures. That is not what I would like of course. How do I create my rule, so it would take random textures for each building and not each tile?