Request for a way to change block texture without replacing it with procedure

Hi!, My Name is Igor, I'm new here, I would like to request a feature that the default minecraft use for the furnace and other blocks that's conditions on the blockstate.json for changing texture, like this:

{
  "variants": {
    "facing=east,lit=false": {
      "model": "minecraft:block/furnace",
      "y": 90
    },
    "facing=east,lit=true": {
      "model": "minecraft:block/furnace_on",
      "y": 90
    },

}(this is only one section),

as you can see, on this json file, when the "lit" condition is true, the game changes the texture, removing the necessity for procedures to achieve the same effect.

and if mcreator already have a system that do this, i can't find it anywhere.... ;-;

sry for the long post (sry for bad english too).

Cheers!