I'm not sure if this is already in the game, and I could not figure it out, but it would be awesome if it were possible to place items on the ground while in the inventory screen by clicking on the item and dragging it to the block you want. I would say a stack of items would be one at a time, just like doing it by hand, but adding tools to racks or items to shelves by dragging them from inventories would be cool.
I am a new player, so please correct me if this is already in the game.