Could you please add this fonction;

Lets say Player X has got 3 furnaces
Player X will open first Furnace and select "Metal Ore"
Player X will open second Furnace and select "High Quality Metal Ore"
Player X will open third Furnace and select "Sulfur Ore"

When he has got lots of ores in his backpack, he will only open a furnace and click on "Sort all" button. Ores will go into the furnaces he sellected.