The three virtues of a programmer: Laziness, Impatience, and Hubris. – Larry Wall

From Unreal Wiki, The Unreal Engine Documentation Site

This takes a material and scales it. Extremely useful for static meshes that you've enlarged or shrunk to a point where the texture you want to use as a skin looks silly.

To use:

1. make a TexScaler based on the texture you want
2. apply it to the mesh
3. set the scale of the TexScaler to fit – you can edit the material properties while you watch the effect on the static mesh actor.