Help with Cropping Textures in UnrealScript

[Granny255]

I'm trying to take a scene capture and only use a section of the capture at a time to blend it with a smaller-sized texture in a material. I know that Canvas has the DrawMaterialTile where I can set the starting and ending UVs of what's drawn, but I would like to crop the scenes first, then pass it into the material. I've looked around in the Material Editor for parameters to pass in to the textures but can't find any for starting and ending UVs.

Thanks for any help!

[Granny255]

Bump. Really need help with this