eye materials takes 3-4 textures to do, depends on the character your modeling over... and you would have to rename the material to EyeL (or EyeR).
how to do it... if its over a character that uses SRT0 for its eyes
look at the original model, and open its materials.
-Export Material plus the shader its linked to
-Open up the model you want to give moving eyes to, replace the eye material with the EyeL/EyeR (and same with FS Eyes, but rename those to EyeYellowL/R ), and import a new shader to the model, and replace that new shader with the 1 you exported from the original brawl character model.
up next will be some texture editing if you know how to do it!
the eye material will tell u how many textures the eye uses
once u have made or edited your textures for the eyes, import them into Brawlbox, and assign them to the materials by looking at the original model eye material.
After all the material texture naming and stuff, link the updated materials to the new shader.
after your all done, for each texture node for the material, on the right panel, scroll down to the very bottom, to the XF TexGen Flags, and look for Coordinates. Change the settings for that to TexCoord0.
if you did it all correctly, test it out in model viewer with the characters FitCharMotionEtc.pac file, and watch the eyes move!
if you have any issue's... comment!
update:
characters like Mario and Luigi, u'll have to use the same polygons they have due to their SRT0 data having them blink.