Resize material/texture?

I imported a .jpg to create a material texture. However, I can’t find where/how to resize. The surface is 8’x8’ and I’d like the sections to be 2’x2’. In SU, scaling on import is easy, as is right click for re-scaling. I assume these can be done in Rhino, I just can’t figure it out.
Rhino surface w/material.

SU surface w/scaled texture. I brought in the same .jpg, fit it to 2’x2’ guidelines then painted with the texture. I could have also imported to the 8’x8’ surface and right-clicked to scale.