- Select a brush
- Hit CTRL-W
- Note that in UnrealEd 2, this sometimes crashes. The problem appears to be that UnrealEd tries to place the new brush to a certain distance of the original, and if the grid size is too large relative to the distance between vertices, this is off-grid and when it attempts to put the vertices back on-grid, they collapse together.
- Shape the red builder brush, with the brushbuilders and any clipping, intersecting, etc operations
- CSG add or subtract several copies of it
- Choose one of the brushbuilders or 2D Shape Editor to create a brush for the red builder brush
- Apply any Brush Transformation
- Add or subtract the brush from the map
- Apply textures to it
Move the red builder brush out of the way, select the brush and choose
Brush Context Menu → Polygons → To Brush.
The red builder brush will then wrap onto the brush. It will also take on all the texture settings, so it will be textured like the first when you add or subtract another brush. This is particularly useful for repeating architecturual structures such as pillars or girders.