It would be really nice, for everyone but especially crafters, if there was a shortcut to move items to and from containers, such as sacks and furnaces. I wish that holding the option key while clicking on a stack of items in a container would move it to your inventory, just like dropping it on the move to inventory button does. Likewise, holding option/alt while clicking on a stack of items would move the stack to an open container, if there is one.
For instance if you have a sack open, and you option click an item in the sack, it would be moved to the first free space in your inventory. If you then leave the sack open and option click on an item in your inventory, it would move to the first free slot in the sack. The same would go for furnaces and other crafting type containers.
