Easiest way is to redefine the material itself... Open up the Materials Dialog, find Surf-Stucco and make it look like Brown Tile.. You can even rename it.... Now, all the items that had Surf Stucco will be Brown Tile.
You might also want to make a duplicate of Surface Stucco (first, before you make it look like brown tile)... But change the ORIGINAL Surface Stucco for it to affect all the elements that already use that material...
Also...
You can use FIND AND SELECT to find all elements that have Surf Stucco as a material... This might get a little tricky as it won't find LIBRARY OBJECTS that have surface stucco as a material inside its parameters...
Duane
Visual Frontiers
AC25 :|: AC26 :|: AC27
:|: Enscape3.4:|:TwinMotion
DellXPS 4.7ghz i7:|: 8gb GPU 1070ti / Alienware M18 Laptop