can someone edit this model for me?

[Grundy]

i don't know how to do this with War3ModelEditor and i dont have any kind of modeling program so can someone please do this for me? real simple thing i want done. I just want to add 2 attachment points to the Wyvern Rider model, Wing Right and Wing Left to the Wyvern's wings right were it's claws are on each wing. The model can be found in War3.mpq not War3x.mpq
Units\Orc\WyvernRider\WyvernRider.mdx