The icon is buggy and the arrow is always on even though the arrow is not in world select state. moreover,
I can only move items in the game by pressing numbers 1 to 9 or pressing and holding the left click (that is, I cannot move by pressing the shift key). When creating items, I can't create them all at once, and I can only drop them once or place them in an empty space in your inventory and stack the same items on top of each other.