Campfire unlit

Hi.

I am bothered about the cant unlit campfire with shovel in java edition thing,so i decide to make myself the mod for it.

Im Very new at the mccreator and coding itself. I spend the whole night triyng to build it in mcreator but no success. As the campfire itself is an entity block, but seems like the program recognize only as a block or something like that. and even if it does i cant find a "event/target block" block,only a "event/target entity".

And... the "extinguish" block works in the camp fire? It doesn´t seems to. 

I think it should work if i just use the replace block, but i cant find the unlit campfire in the block selector. im cornered. Am I doing something wrong? is this mod even possible?

The whole internet doesnt seems to know the answer to this.

If you eventually know how to make this mod and want to show me some prints i would really aprecciate it. 

Thank you.