In the current revision of Haven & Hearth, you can hold shift while scrolling the mousewheel over a container to transfer the last added items to/from your inventory. Holding shift and control would transfer the highest quality item to/from your inventory. Loftar has said at one point that holding shift, control and alt would transfer the lowest quality item. (Which I haven't gotten working however.)
What I suggest is that simply scrolling without holding shift would transfer the items. If you scroll while hovering over your inventory, it would transfer to/from the last activated container; For the sake of user-friendliness.
Holding shift would transfer the highest quality item first, while holding shift and control would transfer the item of the lowest quality. This removes the need for 3 held keys to sort by lowest quality first.