Hello,
Quite a few times ive now been manually unplugging the multi- or corona uvw randomizer input maps in order to preview the way the texture is procedurally assigned. With the initial solid colors you can quite easily check if adjacent objects (like floorplanks) are using the same texture. I wonder why there isnt a checkbox to enable or disable textures in the multimap and overrride with a random solid color, and a checkbox in the uvwrandomizer to override with a uvw texture (similar to the one that exists in the native unwrapping tool.) This would make browsing for a good randomized seed in both of these a lot quicker.
A small color correct tool in the coronauvwrandomizer, similar to the corona multimap would also be quite handy 
Regards