I’ve got a feature request (maybe I just don’t know how to do it). I want the ability to use textures (for siding, shingles, etc) in layout, but in grayscale or monochrome. I’m creating construction documents and don’t want color, but I don’t want to have to create things like siding and shingles in 3D in order to use a grayscale style currently available… I know SketchUp can desaturate textures from editing them in the materials area, but I don’t want to do it that way and loose the color in my photorealistic renderings.
You could use the Greyscale plugin by Jim. It’s available from Sketchucation. It’ll let you convert your textures to gray scale in SketchUp for your LO scenes. You can undo the gray scale setting for your renders, though.