Being able to replace multiple textures in the eye switch state. ( SM64 )

[AquariusAlexx]

For characters such as Wario and Toad, their eye and mouths are seperate textures leading to me making the death heads extra models, I feel like you should be able to make it so you can add multiple textures and you can replace certain ones, concept is below. The plus on the image indicates you can add another if needed.