Transfer command would do exaclty as the command suggest, transfers stuff. From the ground straight to a chest, or sack...or from a chest or sack to the ground, or to a trunk if you have a room.
E.g. You see a dwarven hammer
:Transfer hammer chest
You put a dwarven hammer in a diamantium chest.
Would be nice for when your carrying something too heavy to have in your inventory but have room in a chest.