Change item texture code block

The idea is that there would be a code block in advanced or items saying Texture override for an item or tool,

It would look kind of like this^ Where you choose the item in question and you change its texture, this would be SUPER helpful to a-lot of people, Instead of making 7 different versions of the same tool just to look different they could use nbt to determine what texture the tool/item would use! I would love all feeback on this, good or not. It may not even be possible. but if it Is I would love for it to fit into 2022.2