Fully rid vanilla block w/your block

I;e so when your in the inventory and you see diorite, I want to replace it w/ my block there. But also replace it in the overworld. Then following replace the stairs, walls, etc with my version. But also change its name to diamoraridian?

Is this possible in mcreator or is my current setup the only way. Which is a procedure to detect block in inventory & if near in world, replace with my block. It is fine, but still says diorite. 

Can we get this as a future tab someday maybe?