haven't seen it mentioned elsewhere, but when you open transmog, go to shaders, choose a shader and apply to all it works,
except for everything else!!!!!
when you push your circle past the midpoint of the second column of shaders it kicks you out of shader view menu, making 8/10 of shaders in a page unavailable to use in apply all.
having to shade all armor pieces 1 by 1 is inconvenient.