The wait is over.

I’m… not sure what to add here The offset is (obviously) in studs, so for example if StudsPerTileU is 2, then offsetting the texture mapping by 1 stud results in the texture shifting by half of its width.

The properties can be used to fit textures to parts better, including working around an unfortunate quirk where texture mapping starts from the corner of the part for regular parts, and from the center for mesh/CSG parts; also since the properties are scriptable you can now animate them to get UV scrolling and other neat effects.

Sorry it took so long.