They are all G8F textures, the eye mats are only for the iris, not the other mat zones, im guessing this is because the vendors think it is not necessary to add the other material zones into the eye material, so when you change the eye colour you only need to change the iris, not anything else in the eye. The problem is if you used an eye from someone else then apply the eye mat from a different vendor it only changes the iris textures, NOT the rest of the eye material zone textures. and i don't use G3F as i started using daz only a year ago, so missed the G3F bandwagon. as for pressing control on selected zones has no effect unless you are applying the entire texture set for the character whilst only selecting the eye, and this doesnt give you the option of the different colours, unless done afterwards.

Getting old and still making "art" without soiling myself, now that's success.