I think, this is very useful tutorial on this theme.
Thanks for your attention to my help request! I used MultiTexture some time ago, but now I prefer CoronaMultiMap - it has randomization by Mesh Elements option which is super useful for creating objects such as parquet floor with no need to randomize Mat IDs of parquet geometry.
In this particular case problem was to get controlled gradient mix in maps level, keeping original simple geometry of many different walls.
Besides that I'd like to say thanks for the youtube link - it has link to the website where it's possible to download a lot of wooden planks textures sets which are always useful in interior visualization.
Thank you!
BTW, here is my example of using CoronaMultiMap + CoronaUvwRandomizer - there is single seamless wood map was used to create these chairs (actually they are just instances), CoronaMultiMap was used to randomize hue/gamma, and there is not a single exactly the same parts in all of them, doesn't matter how many copies of original chair will be placed in scene. CoronaMultiMap + CoronaUvwRandomizer - is a great tool!